7289972 has 6 divisors (see below), whose sum is σ = 12757458. Its totient is φ = 3644984.

The previous prime is 7289959. The next prime is 7289987. The reversal of 7289972 is 2799827.

It can be written as a sum of positive squares in only one way, i.e., 6832996 + 456976 = 2614^2 + 676^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911243 + ... + 911250.

It is an arithmetic number, because the mean of its divisors is an integer number (2126243).

Almost surely, 2^7289972 is an apocalyptic number.

It is an amenable number.

7289972 is a deficient number, since it is larger than the sum of its proper divisors (5467486).

7289972 is a wasteful number, since it uses less digits than its factorization.

7289972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822497 (or 1822495 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 7289972 is about 2699.9948148098. The cubic root of 7289972 is about 193.8988738549.

The spelling of 7289972 in words is "seven million, two hundred eighty-nine thousand, nine hundred seventy-two".