3697890349 has 4 divisors (see below), whose sum is σ = 3716661564. Its totient is φ = 3679119136.

The previous prime is 3697890347. The next prime is 3697890377. The reversal of 3697890349 is 9430987963.

3697890349 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9430987963 = 83 ⋅113626361.

It can be written as a sum of positive squares in 2 ways, for example, as 3662428324 + 35462025 = 60518^2 + 5955^2 .

It is a cyclic number.

It is not a de Polignac number, because 3697890349 - 2¹ = 3697890347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3697890293 and 3697890302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3697890341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9385312 + ... + 9385705.

It is an arithmetic number, because the mean of its divisors is an integer number (929165391).

Almost surely, 2^3697890349 is an apocalyptic number.

It is an amenable number.

3697890349 is a deficient number, since it is larger than the sum of its proper divisors (18771215).

3697890349 is a wasteful number, since it uses less digits than its factorization.

3697890349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18771214.

The product of its (nonzero) digits is 8817984, while the sum is 58.

The square root of 3697890349 is about 60810.2816059916. The cubic root of 3697890349 is about 1546.3863579030.

The spelling of 3697890349 in words is "three billion, six hundred ninety-seven million, eight hundred ninety thousand, three hundred forty-nine".