76690443 has 4 divisors (see below), whose sum is σ = 102253928. Its totient is φ = 51126960.

The previous prime is 76690433. The next prime is 76690447. The reversal of 76690443 is 34409667.

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

It is not a de Polignac number, because 76690443 - 2²² = 72496139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76690447) 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, 12781738 + ... + 12781743.

It is an arithmetic number, because the mean of its divisors is an integer number (25563482).

Almost surely, 2^76690443 is an apocalyptic number.

76690443 is a deficient number, since it is larger than the sum of its proper divisors (25563485).

76690443 is a wasteful number, since it uses less digits than its factorization.

76690443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25563484.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 76690443 is about 8757.3079767700. The cubic root of 76690443 is about 424.8612105060.

The spelling of 76690443 in words is "seventy-six million, six hundred ninety thousand, four hundred forty-three".