7199972 has 12 divisors (see below), whose sum is σ = 13569276. Its totient is φ = 3323040.

The previous prime is 7199957. The next prime is 7200007. The reversal of 7199972 is 2799917.

It can be written as a sum of positive squares in 2 ways, for example, as 1705636 + 5494336 = 1306^2 + 2344^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69179 + ... + 69282.

It is an arithmetic number, because the mean of its divisors is an integer number (1130773).

Almost surely, 2^7199972 is an apocalyptic number.

It is an amenable number.

7199972 is a deficient number, since it is larger than the sum of its proper divisors (6369304).

7199972 is a wasteful number, since it uses less digits than its factorization.

7199972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138478 (or 138476 counting only the distinct ones).

The product of its digits is 71442, while the sum is 44.

The square root of 7199972 is about 2683.2763555027. The cubic root of 7199972 is about 193.0976266087.

The spelling of 7199972 in words is "seven million, one hundred ninety-nine thousand, nine hundred seventy-two".