87406106 has 4 divisors (see below), whose sum is σ = 131109162. Its totient is φ = 43703052.

The previous prime is 87406103. The next prime is 87406159. The reversal of 87406106 is 60160478.

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

It can be written as a sum of positive squares in only one way, i.e., 85729081 + 1677025 = 9259^2 + 1295^2 .

It is not an unprimeable number, because it can be changed into a prime (87406103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21851525 + ... + 21851528.

Almost surely, 2^87406106 is an apocalyptic number.

87406106 is a deficient number, since it is larger than the sum of its proper divisors (43703056).

87406106 is a wasteful number, since it uses less digits than its factorization.

87406106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43703055.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 87406106 is about 9349.1232744039. The cubic root of 87406106 is about 443.7931462114.

The spelling of 87406106 in words is "eighty-seven million, four hundred six thousand, one hundred six".