7949972 has 12 divisors (see below), whose sum is σ = 13946100. Its totient is φ = 3965376.

The previous prime is 7949933. The next prime is 7950001. The reversal of 7949972 is 2799497.

It can be written as a sum of positive squares in 2 ways, for example, as 3083536 + 4866436 = 1756^2 + 2206^2 .

It is a congruent number.

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, 347 + ... + 4002.

It is an arithmetic number, because the mean of its divisors is an integer number (1162175).

Almost surely, 2^7949972 is an apocalyptic number.

It is an amenable number.

7949972 is a deficient number, since it is larger than the sum of its proper divisors (5996128).

7949972 is a wasteful number, since it uses less digits than its factorization.

7949972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810 (or 4808 counting only the distinct ones).

The product of its digits is 285768, while the sum is 47.

The square root of 7949972 is about 2819.5694706817. The cubic root of 7949972 is about 199.5822279402.

The spelling of 7949972 in words is "seven million, nine hundred forty-nine thousand, nine hundred seventy-two".