72810612 has 36 divisors (see below), whose sum is σ = 210342496. Its totient is φ = 20802960.

The previous prime is 72810593. The next prime is 72810613. The reversal of 72810612 is 21601827.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72810613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144214 + ... + 144717.

Almost surely, 2^72810612 is an apocalyptic number.

It is an amenable number.

72810612 is an abundant number, since it is smaller than the sum of its proper divisors (137531884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72810612 is a wasteful number, since it uses less digits than its factorization.

72810612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288948 (or 288943 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 72810612 is about 8532.9134532116. The cubic root of 72810612 is about 417.5721834865.

The spelling of 72810612 in words is "seventy-two million, eight hundred ten thousand, six hundred twelve".