82890004 has 12 divisors (see below), whose sum is σ = 150059700. Its totient is φ = 40015808.

The previous prime is 82889981. The next prime is 82890007. The reversal of 82890004 is 40009828.

It can be written as a sum of positive squares in 2 ways, for example, as 51552400 + 31337604 = 7180^2 + 5598^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82890007) 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, 357169 + ... + 357400.

It is an arithmetic number, because the mean of its divisors is an integer number (12504975).

Almost surely, 2^82890004 is an apocalyptic number.

It is an amenable number.

82890004 is a deficient number, since it is larger than the sum of its proper divisors (67169696).

82890004 is a wasteful number, since it uses less digits than its factorization.

82890004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714602 (or 714600 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 82890004 is about 9104.3947629702. The cubic root of 82890004 is about 436.0142870497.

The spelling of 82890004 in words is "eighty-two million, eight hundred ninety thousand, four".