82861250 has 40 divisors (see below), whose sum is σ = 156699840. Its totient is φ = 32850000.

The previous prime is 82861237. The next prime is 82861267. The reversal of 82861250 is 5216828.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 188531 + ... + 188969.

It is an arithmetic number, because the mean of its divisors is an integer number (3917496).

Almost surely, 2^82861250 is an apocalyptic number.

82861250 is a deficient number, since it is larger than the sum of its proper divisors (73838590).

82861250 is a wasteful number, since it uses less digits than its factorization.

82861250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 82861250 is about 9102.8154985147. The cubic root of 82861250 is about 435.9638643845.

The spelling of 82861250 in words is "eighty-two million, eight hundred sixty-one thousand, two hundred fifty".