857214013 has 8 divisors (see below), whose sum is σ = 915799520. Its totient is φ = 799975440.

The previous prime is 857213999. The next prime is 857214023. The reversal of 857214013 is 310412758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 857214013 - 2⁹ = 857213501 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 (857214023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335418 + ... + 337963.

It is an arithmetic number, because the mean of its divisors is an integer number (114474940).

Almost surely, 2^857214013 is an apocalyptic number.

It is an amenable number.

857214013 is a deficient number, since it is larger than the sum of its proper divisors (58585507).

857214013 is a wasteful number, since it uses less digits than its factorization.

857214013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673467.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 857214013 is about 29278.2173808448. The cubic root of 857214013 is about 949.9405366290.

The spelling of 857214013 in words is "eight hundred fifty-seven million, two hundred fourteen thousand, thirteen".