215682982 has 4 divisors (see below), whose sum is σ = 323524476. Its totient is φ = 107841490.

The previous prime is 215682959. The next prime is 215682991. The reversal of 215682982 is 289286512.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53920744 + ... + 53920747.

It is an arithmetic number, because the mean of its divisors is an integer number (80881119).

Almost surely, 2^215682982 is an apocalyptic number.

215682982 is a deficient number, since it is larger than the sum of its proper divisors (107841494).

215682982 is a wasteful number, since it uses less digits than its factorization.

215682982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107841493.

The product of its digits is 138240, while the sum is 43.

The square root of 215682982 is about 14686.1493251294. The cubic root of 215682982 is about 599.7063210928.

The spelling of 215682982 in words is "two hundred fifteen million, six hundred eighty-two thousand, nine hundred eighty-two".