72847592 has 8 divisors (see below), whose sum is σ = 136589250. Its totient is φ = 36423792.

The previous prime is 72847583. The next prime is 72847627. The reversal of 72847592 is 29574827.

It can be written as a sum of positive squares in only one way, i.e., 72012196 + 835396 = 8486^2 + 914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4552967 + ... + 4552982.

Almost surely, 2^72847592 is an apocalyptic number.

It is an amenable number.

72847592 is a deficient number, since it is larger than the sum of its proper divisors (63741658).

72847592 is a wasteful number, since it uses less digits than its factorization.

72847592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9105955 (or 9105951 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 72847592 is about 8535.0800816395. The cubic root of 72847592 is about 417.6428655176.

The spelling of 72847592 in words is "seventy-two million, eight hundred forty-seven thousand, five hundred ninety-two".