8620669 has 4 divisors (see below), whose sum is σ = 8701344. Its totient is φ = 8539996.

The previous prime is 8620663. The next prime is 8620673. The reversal of 8620669 is 9660268.

8620669 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 8620669 - 2⁵ = 8620637 is a prime.

It is a super-2 number, since 2×8620669² = 148631868015122, 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 (8620663) 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, 40177 + ... + 40390.

It is an arithmetic number, because the mean of its divisors is an integer number (2175336).

Almost surely, 2^8620669 is an apocalyptic number.

It is an amenable number.

8620669 is a deficient number, since it is larger than the sum of its proper divisors (80675).

8620669 is a wasteful number, since it uses less digits than its factorization.

8620669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80674.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 8620669 is about 2936.0975801223. The cubic root of 8620669 is about 205.0439643958.

The spelling of 8620669 in words is "eight million, six hundred twenty thousand, six hundred sixty-nine".