8719972 has 6 divisors (see below), whose sum is σ = 15259958. Its totient is φ = 4359984.

The previous prime is 8719961. The next prime is 8719987. The reversal of 8719972 is 2799178.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7096896 + 1623076 = 2664^2 + 1274^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1089993 + ... + 1090000.

Almost surely, 2^8719972 is an apocalyptic number.

It is an amenable number.

8719972 is a deficient number, since it is larger than the sum of its proper divisors (6539986).

8719972 is a wasteful number, since it uses less digits than its factorization.

8719972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179997 (or 2179995 counting only the distinct ones).

The product of its digits is 63504, while the sum is 43.

The square root of 8719972 is about 2952.9598710446. The cubic root of 8719972 is about 205.8282730083.

The spelling of 8719972 in words is "eight million, seven hundred nineteen thousand, nine hundred seventy-two".