8116990 has 64 divisors (see below), whose sum is σ = 18662400. Its totient is φ = 2474496.

The previous prime is 8116967. The next prime is 8116993. The reversal of 8116990 is 996118.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8116993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22431 + ... + 22789.

It is an arithmetic number, because the mean of its divisors is an integer number (291600).

Almost surely, 2^8116990 is an apocalyptic number.

8116990 is an abundant number, since it is smaller than the sum of its proper divisors (10545410).

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

8116990 is a wasteful number, since it uses less digits than its factorization.

8116990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 8116990 is about 2849.0331693401. The cubic root of 8116990 is about 200.9702025910.

It can be divided in two parts, 81 and 16990, that added together give a palindrome (17071).

The spelling of 8116990 in words is "eight million, one hundred sixteen thousand, nine hundred ninety".