87418407 has 4 divisors (see below), whose sum is σ = 116557880. Its totient is φ = 58278936.

The previous prime is 87418399. The next prime is 87418421. The reversal of 87418407 is 70481478.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87418407 - 2³ = 87418399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87418427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14569732 + ... + 14569737.

It is an arithmetic number, because the mean of its divisors is an integer number (29139470).

Almost surely, 2^87418407 is an apocalyptic number.

87418407 is a deficient number, since it is larger than the sum of its proper divisors (29139473).

87418407 is a wasteful number, since it uses less digits than its factorization.

87418407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29139472.

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 87418407 is about 9349.7811204327. The cubic root of 87418407 is about 443.8139641445.

The spelling of 87418407 in words is "eighty-seven million, four hundred eighteen thousand, four hundred seven".