8970257 has 4 divisors (see below), whose sum is σ = 8980080. Its totient is φ = 8960436.

The previous prime is 8970229. The next prime is 8970263. The reversal of 8970257 is 7520798.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8970257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8970257.

It is not an unprimeable number, because it can be changed into a prime (8970217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3383 + ... + 5420.

It is an arithmetic number, because the mean of its divisors is an integer number (2245020).

Almost surely, 2^8970257 is an apocalyptic number.

It is an amenable number.

8970257 is a deficient number, since it is larger than the sum of its proper divisors (9823).

8970257 is a wasteful number, since it uses less digits than its factorization.

8970257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9822.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 8970257 is about 2995.0387309683. The cubic root of 8970257 is about 207.7789889281.

The spelling of 8970257 in words is "eight million, nine hundred seventy thousand, two hundred fifty-seven".