3697820641 has 8 divisors (see below), whose sum is σ = 3906500480. Its totient is φ = 3490546608.

The previous prime is 3697820639. The next prime is 3697820669. The reversal of 3697820641 is 1460287963.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3697820641 - 2¹ = 3697820639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3697820591 and 3697820600.

It is not an unprimeable number, because it can be changed into a prime (3697820941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346041 + ... + 356566.

It is an arithmetic number, because the mean of its divisors is an integer number (488312560).

Almost surely, 2^3697820641 is an apocalyptic number.

It is an amenable number.

3697820641 is a deficient number, since it is larger than the sum of its proper divisors (208679839).

3697820641 is a wasteful number, since it uses less digits than its factorization.

3697820641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702903.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 3697820641 is about 60809.7084436359. The cubic root of 3697820641 is about 1546.3766409953.

The spelling of 3697820641 in words is "three billion, six hundred ninety-seven million, eight hundred twenty thousand, six hundred forty-one".