72871025 has 24 divisors (see below), whose sum is σ = 94279680. Its totient is φ = 55823040.

The previous prime is 72871021. The next prime is 72871039. The reversal of 72871025 is 52017827.

It is not a de Polignac number, because 72871025 - 2² = 72871021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72870982 and 72871000.

It is not an unprimeable number, because it can be changed into a prime (72871021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56336 + ... + 57614.

It is an arithmetic number, because the mean of its divisors is an integer number (3928320).

Almost surely, 2^72871025 is an apocalyptic number.

It is an amenable number.

72871025 is a deficient number, since it is larger than the sum of its proper divisors (21408655).

72871025 is a wasteful number, since it uses less digits than its factorization.

72871025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1380 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 72871025 is about 8536.4527176105. The cubic root of 72871025 is about 417.6876419969.

The spelling of 72871025 in words is "seventy-two million, eight hundred seventy-one thousand, twenty-five".