768974537 has 4 divisors (see below), whose sum is σ = 770010240. Its totient is φ = 767938836.

The previous prime is 768974533. The next prime is 768974551. The reversal of 768974537 is 735479867.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 768974537 - 2² = 768974533 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768974533) 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, 516737 + ... + 518222.

It is an arithmetic number, because the mean of its divisors is an integer number (192502560).

Almost surely, 2^768974537 is an apocalyptic number.

It is an amenable number.

768974537 is a deficient number, since it is larger than the sum of its proper divisors (1035703).

768974537 is a wasteful number, since it uses less digits than its factorization.

768974537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035702.

The product of its digits is 8890560, while the sum is 56.

The square root of 768974537 is about 27730.3901342913. The cubic root of 768974537 is about 916.1585797573.

The spelling of 768974537 in words is "seven hundred sixty-eight million, nine hundred seventy-four thousand, five hundred thirty-seven".