87012806 has 4 divisors (see below), whose sum is σ = 130519212. Its totient is φ = 43506402.

The previous prime is 87012769. The next prime is 87012811. The reversal of 87012806 is 60821078.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21753200 + ... + 21753203.

It is an arithmetic number, because the mean of its divisors is an integer number (32629803).

Almost surely, 2^87012806 is an apocalyptic number.

87012806 is a deficient number, since it is larger than the sum of its proper divisors (43506406).

87012806 is a wasteful number, since it uses less digits than its factorization.

87012806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43506405.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 87012806 is about 9328.0655014853. The cubic root of 87012806 is about 443.1265020973.

The spelling of 87012806 in words is "eighty-seven million, twelve thousand, eight hundred six".