87913785 has 8 divisors (see below), whose sum is σ = 140662080. Its totient is φ = 46887344.

The previous prime is 87913781. The next prime is 87913823. The reversal of 87913785 is 58731978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87913785 - 2² = 87913781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87913781) 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, 2930445 + ... + 2930474.

It is an arithmetic number, because the mean of its divisors is an integer number (17582760).

Almost surely, 2^87913785 is an apocalyptic number.

It is an amenable number.

87913785 is a deficient number, since it is larger than the sum of its proper divisors (52748295).

87913785 is a wasteful number, since it uses less digits than its factorization.

87913785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860927.

The product of its digits is 423360, while the sum is 48.

The square root of 87913785 is about 9376.2351186390. The cubic root of 87913785 is about 444.6507127391.

The spelling of 87913785 in words is "eighty-seven million, nine hundred thirteen thousand, seven hundred eighty-five".