85607973397 has 16 divisors (see below), whose sum is σ = 92015862192. Its totient is φ = 79360819200.

The previous prime is 85607973361. The next prime is 85607973401. The reversal of 85607973397 is 79337970658.

It can be written as a sum of positive squares in 8 ways, for example, as 18108815761 + 67499157636 = 134569^2 + 259806^2 .

It is a cyclic number.

It is not a de Polignac number, because 85607973397 - 2¹¹ = 85607971349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85607977397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202213 + ... + 460549.

It is an arithmetic number, because the mean of its divisors is an integer number (5750991387).

Almost surely, 2^85607973397 is an apocalyptic number.

It is an amenable number.

85607973397 is a deficient number, since it is larger than the sum of its proper divisors (6407888795).

85607973397 is a wasteful number, since it uses less digits than its factorization.

85607973397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258648.

The product of its (nonzero) digits is 60011280, while the sum is 64.

The spelling of 85607973397 in words is "eighty-five billion, six hundred seven million, nine hundred seventy-three thousand, three hundred ninety-seven".