87407863 has 16 divisors (see below), whose sum is σ = 95657760. Its totient is φ = 79543296.

The previous prime is 87407861. The next prime is 87407867. The reversal of 87407863 is 36870478.

It is a cyclic number.

It is not a de Polignac number, because 87407863 - 2¹ = 87407861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87407861) 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, 79131 + ... + 80227.

It is an arithmetic number, because the mean of its divisors is an integer number (5978610).

Almost surely, 2^87407863 is an apocalyptic number.

87407863 is a deficient number, since it is larger than the sum of its proper divisors (8249897).

87407863 is a wasteful number, since it uses less digits than its factorization.

87407863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 87407863 is about 9349.2172399619. The cubic root of 87407863 is about 443.7961198379.

The spelling of 87407863 in words is "eighty-seven million, four hundred seven thousand, eight hundred sixty-three".