82390534 has 16 divisors (see below), whose sum is σ = 131268816. Its totient is φ = 38649600.

The previous prime is 82390523. The next prime is 82390541. The reversal of 82390534 is 43509328.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 82390534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7594 + ... + 14914.

It is an arithmetic number, because the mean of its divisors is an integer number (8204301).

Almost surely, 2^82390534 is an apocalyptic number.

82390534 is a deficient number, since it is larger than the sum of its proper divisors (48878282).

82390534 is a wasteful number, since it uses less digits than its factorization.

82390534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7671.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 82390534 is about 9076.9231571056. The cubic root of 82390534 is about 435.1367588674.

The spelling of 82390534 in words is "eighty-two million, three hundred ninety thousand, five hundred thirty-four".