73868624 has 10 divisors (see below), whose sum is σ = 143120490. Its totient is φ = 36934304.

The previous prime is 73868603. The next prime is 73868633. The reversal of 73868624 is 42686837.

It can be written as a sum of positive squares in only one way, i.e., 72931600 + 937024 = 8540^2 + 968^2 .

It is a super-2 number, since 2×73868624² = 10913147223306752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2308379 + ... + 2308410.

It is an arithmetic number, because the mean of its divisors is an integer number (14312049).

Almost surely, 2^73868624 is an apocalyptic number.

It is an amenable number.

73868624 is a deficient number, since it is larger than the sum of its proper divisors (69251866).

73868624 is a wasteful number, since it uses less digits than its factorization.

73868624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4616797 (or 4616791 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 73868624 is about 8594.6857999580. The cubic root of 73868624 is about 419.5850474633.

The spelling of 73868624 in words is "seventy-three million, eight hundred sixty-eight thousand, six hundred twenty-four".