69724372 has 6 divisors (see below), whose sum is σ = 122017658. Its totient is φ = 34862184.

The previous prime is 69724367. The next prime is 69724379. The reversal of 69724372 is 27342796.

It can be written as a sum of positive squares in only one way, i.e., 69155856 + 568516 = 8316^2 + 754^2 .

It is a super-2 number, since 2×69724372² = 9722976101588768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69724379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8715543 + ... + 8715550.

Almost surely, 2^69724372 is an apocalyptic number.

It is an amenable number.

69724372 is a deficient number, since it is larger than the sum of its proper divisors (52293286).

69724372 is a wasteful number, since it uses less digits than its factorization.

69724372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17431097 (or 17431095 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The square root of 69724372 is about 8350.1120950560. The cubic root of 69724372 is about 411.5868938693.

The spelling of 69724372 in words is "sixty-nine million, seven hundred twenty-four thousand, three hundred seventy-two".