8701257 has 4 divisors (see below), whose sum is σ = 11601680. Its totient is φ = 5800836.

The previous prime is 8701243. The next prime is 8701267. The reversal of 8701257 is 7521078.

It is a happy number.

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.

It is not a de Polignac number, because 8701257 - 2⁶ = 8701193 is a prime.

It is a Duffinian number.

8701257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8701207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450207 + ... + 1450212.

It is an arithmetic number, because the mean of its divisors is an integer number (2900420).

Almost surely, 2^8701257 is an apocalyptic number.

It is an amenable number.

8701257 is a deficient number, since it is larger than the sum of its proper divisors (2900423).

8701257 is a wasteful number, since it uses less digits than its factorization.

8701257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900422.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 8701257 is about 2949.7893145104. The cubic root of 8701257 is about 205.6809164486.

The spelling of 8701257 in words is "eight million, seven hundred one thousand, two hundred fifty-seven".