72924031 has 8 divisors (see below), whose sum is σ = 74545920. Its totient is φ = 71319768.

The previous prime is 72924023. The next prime is 72924037. The reversal of 72924031 is 13042927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72924031 - 2³ = 72924023 is a prime.

It is a super-2 number, since 2×72924031² = 10635828594577922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72924037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4140 + ... + 12766.

It is an arithmetic number, because the mean of its divisors is an integer number (9318240).

Almost surely, 2^72924031 is an apocalyptic number.

72924031 is a deficient number, since it is larger than the sum of its proper divisors (1621889).

72924031 is a wasteful number, since it uses less digits than its factorization.

72924031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8813.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 72924031 is about 8539.5568386187. The cubic root of 72924031 is about 417.7888920487.

Adding to 72924031 its reverse (13042927), we get a palindrome (85966958).

The spelling of 72924031 in words is "seventy-two million, nine hundred twenty-four thousand, thirty-one".