87651206 has 16 divisors (see below), whose sum is σ = 137701728. Its totient is φ = 41764800.

The previous prime is 87651163. The next prime is 87651227. The reversal of 87651206 is 60215678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9536 + ... + 16316.

It is an arithmetic number, because the mean of its divisors is an integer number (8606358).

Almost surely, 2^87651206 is an apocalyptic number.

87651206 is a deficient number, since it is larger than the sum of its proper divisors (50050522).

87651206 is a wasteful number, since it uses less digits than its factorization.

87651206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7087.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 87651206 is about 9362.2222789250. Note that the first 4 decimals coincide. The cubic root of 87651206 is about 444.2075802082.

Subtracting from 87651206 its reverse (60215678), we obtain a triangular number (27435528 = T₇₄₀₇).

The spelling of 87651206 in words is "eighty-seven million, six hundred fifty-one thousand, two hundred six".