76990089 has 16 divisors (see below), whose sum is σ = 114370560. Its totient is φ = 45666960.

The previous prime is 76990061. The next prime is 76990091. The reversal of 76990089 is 98009967.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-76990089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76990049) 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, 23269 + ... + 26370.

It is an arithmetic number, because the mean of its divisors is an integer number (7148160).

Almost surely, 2^76990089 is an apocalyptic number.

It is an amenable number.

76990089 is a deficient number, since it is larger than the sum of its proper divisors (37380471).

76990089 is a wasteful number, since it uses less digits than its factorization.

76990089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49700.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 76990089 is about 8774.3996375820. The cubic root of 76990089 is about 425.4138326659.

The spelling of 76990089 in words is "seventy-six million, nine hundred ninety thousand, eighty-nine".