73187264 has 14 divisors (see below), whose sum is σ = 145231104. Its totient is φ = 36593600.

The previous prime is 73187263. The next prime is 73187267. The reversal of 73187264 is 46278137.

It is a super-2 number, since 2×73187264² = 10712751223611392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73187263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571712 + ... + 571839.

Almost surely, 2^73187264 is an apocalyptic number.

It is an amenable number.

73187264 is a deficient number, since it is larger than the sum of its proper divisors (72043840).

73187264 is a wasteful number, since it uses less digits than its factorization.

73187264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143563 (or 1143553 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 73187264 is about 8554.9555229703. The cubic root of 73187264 is about 418.2909842511.

The spelling of 73187264 in words is "seventy-three million, one hundred eighty-seven thousand, two hundred sixty-four".