87622851 has 16 divisors (see below), whose sum is σ = 124467840. Its totient is φ = 54671040.

The previous prime is 87622837. The next prime is 87622859. The reversal of 87622851 is 15822678.

It is not a de Polignac number, because 87622851 - 2¹⁷ = 87491779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87622859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4530 + ... + 13991.

It is an arithmetic number, because the mean of its divisors is an integer number (7779240).

Almost surely, 2^87622851 is an apocalyptic number.

87622851 is a deficient number, since it is larger than the sum of its proper divisors (36844989).

87622851 is a wasteful number, since it uses less digits than its factorization.

87622851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18626.

The product of its digits is 53760, while the sum is 39.

The square root of 87622851 is about 9360.7078258004. The cubic root of 87622851 is about 444.1596749370.

The spelling of 87622851 in words is "eighty-seven million, six hundred twenty-two thousand, eight hundred fifty-one".