72847370 has 16 divisors (see below), whose sum is σ = 131309640. Its totient is φ = 29097984.

The previous prime is 72847343. The next prime is 72847373. The reversal of 72847370 is 7374827.

It can be written as a sum of positive squares in 4 ways, for example, as 69739201 + 3108169 = 8351^2 + 1763^2 .

It is not an unprimeable number, because it can be changed into a prime (72847373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2954 + ... + 12426.

Almost surely, 2^72847370 is an apocalyptic number.

72847370 is a deficient number, since it is larger than the sum of its proper divisors (58462270).

72847370 is a wasteful number, since it uses less digits than its factorization.

72847370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10249.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 72847370 is about 8535.0670764792. The cubic root of 72847370 is about 417.6424412674.

The spelling of 72847370 in words is "seventy-two million, eight hundred forty-seven thousand, three hundred seventy".