73229972 has 12 divisors (see below), whose sum is σ = 128522100. Its totient is φ = 36509376.

The previous prime is 73229969. The next prime is 73230007. The reversal of 73229972 is 27992237.

It can be written as a sum of positive squares in 2 ways, for example, as 67305616 + 5924356 = 8204^2 + 2434^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 24833 + ... + 27624.

It is an arithmetic number, because the mean of its divisors is an integer number (10710175).

Almost surely, 2^73229972 is an apocalyptic number.

It is an amenable number.

73229972 is a deficient number, since it is larger than the sum of its proper divisors (55292128).

73229972 is a wasteful number, since it uses less digits than its factorization.

73229972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52810 (or 52808 counting only the distinct ones).

The product of its digits is 95256, while the sum is 41.

The square root of 73229972 is about 8557.4512560692. The cubic root of 73229972 is about 418.3723321825.

The spelling of 73229972 in words is "seventy-three million, two hundred twenty-nine thousand, nine hundred seventy-two".