82751972 has 6 divisors (see below), whose sum is σ = 144815958. Its totient is φ = 41375984.

The previous prime is 82751941. The next prime is 82751983. The reversal of 82751972 is 27915728.

It can be written as a sum of positive squares in only one way, i.e., 43112356 + 39639616 = 6566^2 + 6296^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10343993 + ... + 10344000.

It is an arithmetic number, because the mean of its divisors is an integer number (24135993).

Almost surely, 2^82751972 is an apocalyptic number.

It is an amenable number.

82751972 is a deficient number, since it is larger than the sum of its proper divisors (62063986).

82751972 is a wasteful number, since it uses less digits than its factorization.

82751972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20687997 (or 20687995 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 82751972 is about 9096.8110896072. The cubic root of 82751972 is about 435.7721293344.

The spelling of 82751972 in words is "eighty-two million, seven hundred fifty-one thousand, nine hundred seventy-two".