862116864 has 176 divisors, whose sum is σ = 2685139968. Its totient is φ = 240795648.

The previous prime is 862116841. The next prime is 862116877. The reversal of 862116864 is 468611268.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1010262 + ... + 1011114.

Almost surely, 2^862116864 is an apocalyptic number.

862116864 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 862116864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342569984).

862116864 is an abundant number, since it is smaller than the sum of its proper divisors (1823023104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

862116864 is a wasteful number, since it uses less digits than its factorization.

862116864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 912 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 862116864 is about 29361.8266461745. The cubic root of 862116864 is about 951.7481620890.

The spelling of 862116864 in words is "eight hundred sixty-two million, one hundred sixteen thousand, eight hundred sixty-four".