8257072 has 30 divisors (see below), whose sum is σ = 16451204. Its totient is φ = 4014720.

The previous prime is 8257057. The next prime is 8257157. The reversal of 8257072 is 2707528.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26743 + ... + 27049.

Almost surely, 2^8257072 is an apocalyptic number.

8257072 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

8257072 is a deficient number, since it is larger than the sum of its proper divisors (8194132).

8257072 is a wasteful number, since it uses less digits than its factorization.

8257072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 8257072 is about 2873.5121367414. The cubic root of 8257072 is about 202.1197212069.

The spelling of 8257072 in words is "eight million, two hundred fifty-seven thousand, seventy-two".