3620031397 has 8 divisors (see below), whose sum is σ = 3681130712. Its totient is φ = 3558988800.

The previous prime is 3620031379. The next prime is 3620031431. The reversal of 3620031397 is 7931300263.

It can be written as a sum of positive squares in 4 ways, for example, as 271557441 + 3348473956 = 16479^2 + 57866^2 .

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 3620031397 - 2¹¹ = 3620029349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620031307) 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, 126133 + ... + 152149.

It is an arithmetic number, because the mean of its divisors is an integer number (460141339).

Almost surely, 2^3620031397 is an apocalyptic number.

It is an amenable number.

3620031397 is a deficient number, since it is larger than the sum of its proper divisors (61099315).

3620031397 is a wasteful number, since it uses less digits than its factorization.

3620031397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28359.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 3620031397 is about 60166.6967432981. The cubic root of 3620031397 is about 1535.4562472205.

The spelling of 3620031397 in words is "three billion, six hundred twenty million, thirty-one thousand, three hundred ninety-seven".