8257013 has 4 divisors (see below), whose sum is σ = 8380320. Its totient is φ = 8133708.

The previous prime is 8257009. The next prime is 8257043. The reversal of 8257013 is 3107528.

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 a cyclic number.

It is not a de Polignac number, because 8257013 - 2² = 8257009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8257003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61553 + ... + 61686.

It is an arithmetic number, because the mean of its divisors is an integer number (2095080).

Almost surely, 2^8257013 is an apocalyptic number.

It is an amenable number.

8257013 is a deficient number, since it is larger than the sum of its proper divisors (123307).

8257013 is a wasteful number, since it uses less digits than its factorization.

8257013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123306.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 8257013 is about 2873.5018705405. The cubic root of 8257013 is about 202.1192397977.

The spelling of 8257013 in words is "eight million, two hundred fifty-seven thousand, thirteen".