72863652 has 12 divisors (see below), whose sum is σ = 170015216. Its totient is φ = 24287880.

The previous prime is 72863633. The next prime is 72863663. The reversal of 72863652 is 25636827.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×72863652² = 10618223565554208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72863652.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3035974 + ... + 3035997.

Almost surely, 2^72863652 is an apocalyptic number.

It is an amenable number.

72863652 is an abundant number, since it is smaller than the sum of its proper divisors (97151564).

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

72863652 is a wasteful number, since it uses less digits than its factorization.

72863652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071978 (or 6071976 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 72863652 is about 8536.0208528330. The cubic root of 72863652 is about 417.6735544825.

The spelling of 72863652 in words is "seventy-two million, eight hundred sixty-three thousand, six hundred fifty-two".