76900091 has 4 divisors (see below), whose sum is σ = 77094192. Its totient is φ = 76705992.

The previous prime is 76900073. The next prime is 76900093. The reversal of 76900091 is 19000967.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19000967 = 23 ⋅826129.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76900091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76900093) 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, 96455 + ... + 97248.

It is an arithmetic number, because the mean of its divisors is an integer number (19273548).

Almost surely, 2^76900091 is an apocalyptic number.

76900091 is a deficient number, since it is larger than the sum of its proper divisors (194101).

76900091 is a wasteful number, since it uses less digits than its factorization.

76900091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194100.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 76900091 is about 8769.2696959325. The cubic root of 76900091 is about 425.2480047320.

The spelling of 76900091 in words is "seventy-six million, nine hundred thousand, ninety-one".