862811157 has 16 divisors (see below), whose sum is σ = 1239436800. Its totient is φ = 530734272.

The previous prime is 862811153. The next prime is 862811197. The reversal of 862811157 is 751118268.

It is not a de Polignac number, because 862811157 - 2² = 862811153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (862811153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167068 + ... + 172154.

It is an arithmetic number, because the mean of its divisors is an integer number (77464800).

Almost surely, 2^862811157 is an apocalyptic number.

It is an amenable number.

862811157 is a deficient number, since it is larger than the sum of its proper divisors (376625643).

862811157 is a wasteful number, since it uses less digits than its factorization.

862811157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9452.

The product of its digits is 26880, while the sum is 39.

The square root of 862811157 is about 29373.6473220470. The cubic root of 862811157 is about 952.0035856119.

The spelling of 862811157 in words is "eight hundred sixty-two million, eight hundred eleven thousand, one hundred fifty-seven".