8700642 has 16 divisors (see below), whose sum is σ = 19334880. Its totient is φ = 2900196.

The previous prime is 8700599. The next prime is 8700649. The reversal of 8700642 is 2460078.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8700649) 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, 80508 + ... + 80615.

It is an arithmetic number, because the mean of its divisors is an integer number (1208430).

Almost surely, 2^8700642 is an apocalyptic number.

8700642 is an abundant number, since it is smaller than the sum of its proper divisors (10634238).

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

8700642 is a wasteful number, since it uses less digits than its factorization.

8700642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161134 (or 161128 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 8700642 is about 2949.6850679352. The cubic root of 8700642 is about 205.6760705302.

The spelling of 8700642 in words is "eight million, seven hundred thousand, six hundred forty-two".