87635385 has 16 divisors (see below), whose sum is σ = 155796480. Its totient is φ = 46738800.

The previous prime is 87635381. The next prime is 87635389. The reversal of 87635385 is 58353678.

87635385 is a `hidden beast` number, since 8 + 7 + 635 + 3 + 8 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (87635381) and next prime (87635389).

It is not a de Polignac number, because 87635385 - 2² = 87635381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 87635385.

It is not an unprimeable number, because it can be changed into a prime (87635381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324441 + ... + 324710.

It is an arithmetic number, because the mean of its divisors is an integer number (9737280).

Almost surely, 2^87635385 is an apocalyptic number.

It is an amenable number.

87635385 is a deficient number, since it is larger than the sum of its proper divisors (68161095).

87635385 is a wasteful number, since it uses less digits than its factorization.

87635385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649165 (or 649159 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 87635385 is about 9361.3773025127. The cubic root of 87635385 is about 444.1808521827.

The spelling of 87635385 in words is "eighty-seven million, six hundred thirty-five thousand, three hundred eighty-five".