76664603 has 4 divisors (see below), whose sum is σ = 79308240. Its totient is φ = 74020968.

The previous prime is 76664597. The next prime is 76664633. The reversal of 76664603 is 30646667.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 76664603 - 2⁴ = 76664587 is a prime.

It is a super-2 number, since 2×76664603² = 11754922706295218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76664633) 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, 1321775 + ... + 1321832.

It is an arithmetic number, because the mean of its divisors is an integer number (19827060).

Almost surely, 2^76664603 is an apocalyptic number.

76664603 is a deficient number, since it is larger than the sum of its proper divisors (2643637).

76664603 is a wasteful number, since it uses less digits than its factorization.

76664603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643636.

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 76664603 is about 8755.8325132451. The cubic root of 76664603 is about 424.8134877108.

The spelling of 76664603 in words is "seventy-six million, six hundred sixty-four thousand, six hundred three".