73687252 has 6 divisors (see below), whose sum is σ = 128952698. Its totient is φ = 36843624.

The previous prime is 73687249. The next prime is 73687261. The reversal of 73687252 is 25278637.

It can be written as a sum of positive squares in only one way, i.e., 47941776 + 25745476 = 6924^2 + 5074^2 .

It is a super-2 number, since 2×73687252² = 10859622214623008, which contains 22 as substring.

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, 9210903 + ... + 9210910.

Almost surely, 2^73687252 is an apocalyptic number.

It is an amenable number.

73687252 is a deficient number, since it is larger than the sum of its proper divisors (55265446).

73687252 is a wasteful number, since it uses less digits than its factorization.

73687252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18421817 (or 18421815 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 73687252 is about 8584.1279114421. The cubic root of 73687252 is about 419.2413591484.

The spelling of 73687252 in words is "seventy-three million, six hundred eighty-seven thousand, two hundred fifty-two".