72808852 has 6 divisors (see below), whose sum is σ = 127415498. Its totient is φ = 36404424.

The previous prime is 72808843. The next prime is 72808861. The reversal of 72808852 is 25880827.

It is an interprime number because it is at equal distance from previous prime (72808843) and next prime (72808861).

It can be written as a sum of positive squares in only one way, i.e., 48246916 + 24561936 = 6946^2 + 4956^2 .

It is a super-2 number, since 2×72808852² = 10602257859115808, 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, 9101103 + ... + 9101110.

Almost surely, 2^72808852 is an apocalyptic number.

It is an amenable number.

72808852 is a deficient number, since it is larger than the sum of its proper divisors (54606646).

72808852 is a wasteful number, since it uses less digits than its factorization.

72808852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18202217 (or 18202215 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 72808852 is about 8532.8103225139. The cubic root of 72808852 is about 417.5688188993.

The spelling of 72808852 in words is "seventy-two million, eight hundred eight thousand, eight hundred fifty-two".