82370556 has 72 divisors (see below), whose sum is σ = 216936720. Its totient is φ = 26320896.

The previous prime is 82370543. The next prime is 82370569. The reversal of 82370556 is 65507328.

It is an interprime number because it is at equal distance from previous prime (82370543) and next prime (82370569).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 82370556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268155 + ... + 268461.

It is an arithmetic number, because the mean of its divisors is an integer number (3013010).

Almost surely, 2^82370556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82370556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108468360).

82370556 is an abundant number, since it is smaller than the sum of its proper divisors (134566164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82370556 is a wasteful number, since it uses less digits than its factorization.

82370556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 82370556 is about 9075.8226073453. The cubic root of 82370556 is about 435.1015854703.

The spelling of 82370556 in words is "eighty-two million, three hundred seventy thousand, five hundred fifty-six".