82974263 has 4 divisors (see below), whose sum is σ = 87855120. Its totient is φ = 78093408.

The previous prime is 82974251. The next prime is 82974277. The reversal of 82974263 is 36247928.

It is a happy number.

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 82974263 - 2⁴ = 82974247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82974263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82974163) 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, 2440403 + ... + 2440436.

It is an arithmetic number, because the mean of its divisors is an integer number (21963780).

Almost surely, 2^82974263 is an apocalyptic number.

82974263 is a deficient number, since it is larger than the sum of its proper divisors (4880857).

82974263 is a wasteful number, since it uses less digits than its factorization.

82974263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880856.

The product of its digits is 145152, while the sum is 41.

The square root of 82974263 is about 9109.0209682490. The cubic root of 82974263 is about 436.1619754913.

The spelling of 82974263 in words is "eighty-two million, nine hundred seventy-four thousand, two hundred sixty-three".