7872258 has 32 divisors (see below), whose sum is σ = 16842816. Its totient is φ = 2444288.

The previous prime is 7872239. The next prime is 7872269. The reversal of 7872258 is 8522787.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11185 + ... + 11867.

It is an arithmetic number, because the mean of its divisors is an integer number (526338).

Almost surely, 2^7872258 is an apocalyptic number.

7872258 is an abundant number, since it is smaller than the sum of its proper divisors (8970558).

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

7872258 is a wasteful number, since it uses less digits than its factorization.

7872258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818.

The product of its digits is 62720, while the sum is 39.

The square root of 7872258 is about 2805.7544439954. The cubic root of 7872258 is about 198.9297665505.

The spelling of 7872258 in words is "seven million, eight hundred seventy-two thousand, two hundred fifty-eight".