816770101 has 4 divisors (see below), whose sum is σ = 933451552. Its totient is φ = 700088652.

The previous prime is 816770093. The next prime is 816770111. The reversal of 816770101 is 101077618.

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 816770101 - 2³ = 816770093 is a prime.

It is a super-2 number, since 2×816770101² = 1334226795775100402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816770111) 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, 58340715 + ... + 58340728.

It is an arithmetic number, because the mean of its divisors is an integer number (233362888).

Almost surely, 2^816770101 is an apocalyptic number.

It is an amenable number.

816770101 is a deficient number, since it is larger than the sum of its proper divisors (116681451).

816770101 is a wasteful number, since it uses less digits than its factorization.

816770101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116681450.

The product of its (nonzero) digits is 2352, while the sum is 31.

The square root of 816770101 is about 28579.1899990185. The cubic root of 816770101 is about 934.7596209729.

The spelling of 816770101 in words is "eight hundred sixteen million, seven hundred seventy thousand, one hundred one".