82762921 has 4 divisors (see below), whose sum is σ = 82789200. Its totient is φ = 82736644.

The previous prime is 82762903. The next prime is 82762951. The reversal of 82762921 is 12926728.

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 a de Polignac number, because none of the positive numbers 2^k-82762921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82762951) 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, 7651 + ... + 14968.

It is an arithmetic number, because the mean of its divisors is an integer number (20697300).

Almost surely, 2^82762921 is an apocalyptic number.

It is an amenable number.

82762921 is a deficient number, since it is larger than the sum of its proper divisors (26279).

82762921 is a wasteful number, since it uses less digits than its factorization.

82762921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26278.

The product of its digits is 24192, while the sum is 37.

The square root of 82762921 is about 9097.4128739988. The cubic root of 82762921 is about 435.7913476423.

The spelling of 82762921 in words is "eighty-two million, seven hundred sixty-two thousand, nine hundred twenty-one".