7219972 has 6 divisors (see below), whose sum is σ = 12634958. Its totient is φ = 3609984.

The previous prime is 7219963. The next prime is 7219973. The reversal of 7219972 is 2799127.

It can be written as a sum of positive squares in only one way, i.e., 7150276 + 69696 = 2674^2 + 264^2 .

It is not an unprimeable number, because it can be changed into a prime (7219973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902493 + ... + 902500.

Almost surely, 2^7219972 is an apocalyptic number.

It is an amenable number.

7219972 is a deficient number, since it is larger than the sum of its proper divisors (5414986).

7219972 is a wasteful number, since it uses less digits than its factorization.

7219972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804997 (or 1804995 counting only the distinct ones).

The product of its digits is 15876, while the sum is 37.

The square root of 7219972 is about 2687.0005582433. Note that the first 3 decimals coincide. The cubic root of 7219972 is about 193.2762561064.

The spelling of 7219972 in words is "seven million, two hundred nineteen thousand, nine hundred seventy-two".