8700690 has 16 divisors (see below), whose sum is σ = 20881728. Its totient is φ = 2320176.

The previous prime is 8700649. The next prime is 8700697. The reversal of 8700690 is 960078.

It is a happy number.

8700690 is nontrivially palindromic in base 4.

It is a super-2 number, since 2×8700690² = 151404012952200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 290023 = 8700690 / (8 + 7 + 0 + 0 + 6 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8700697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144982 + ... + 145041.

It is an arithmetic number, because the mean of its divisors is an integer number (1305108).

Almost surely, 2^8700690 is an apocalyptic number.

8700690 is an abundant number, since it is smaller than the sum of its proper divisors (12181038).

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

8700690 is a wasteful number, since it uses less digits than its factorization.

8700690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290033.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 8700690 is about 2949.6932043858. The cubic root of 8700690 is about 205.6764487565.

The spelling of 8700690 in words is "eight million, seven hundred thousand, six hundred ninety".