87406786 has 8 divisors (see below), whose sum is σ = 131328000. Its totient is φ = 43630788.

The previous prime is 87406777. The next prime is 87406829. The reversal of 87406786 is 68760478.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34786 + ... + 37213.

It is an arithmetic number, because the mean of its divisors is an integer number (16416000).

Almost surely, 2^87406786 is an apocalyptic number.

87406786 is a deficient number, since it is larger than the sum of its proper divisors (43921214).

87406786 is a wasteful number, since it uses less digits than its factorization.

87406786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72608.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 87406786 is about 9349.1596413795. The cubic root of 87406786 is about 443.7942970789.

The spelling of 87406786 in words is "eighty-seven million, four hundred six thousand, seven hundred eighty-six".