82216970 has 16 divisors (see below), whose sum is σ = 161444448. Its totient is φ = 29897040.

The previous prime is 82216963. The next prime is 82216987. The reversal of 82216970 is 7961228.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 82216970.

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, 373604 + ... + 373823.

It is an arithmetic number, because the mean of its divisors is an integer number (10090278).

Almost surely, 2^82216970 is an apocalyptic number.

82216970 is a deficient number, since it is larger than the sum of its proper divisors (79227478).

82216970 is a wasteful number, since it uses less digits than its factorization.

82216970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747445.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 82216970 is about 9067.3573879053. The cubic root of 82216970 is about 434.8309908463.

The spelling of 82216970 in words is "eighty-two million, two hundred sixteen thousand, nine hundred seventy".