87920885 has 16 divisors (see below), whose sum is σ = 119602560. Its totient is φ = 61508160.

The previous prime is 87920873. The next prime is 87920887. The reversal of 87920885 is 58802978.

It is not a de Polignac number, because 87920885 - 2⁴ = 87920869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87920887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34361 + ... + 36830.

It is an arithmetic number, because the mean of its divisors is an integer number (7475160).

Almost surely, 2^87920885 is an apocalyptic number.

It is an amenable number.

87920885 is a deficient number, since it is larger than the sum of its proper divisors (31681675).

87920885 is a wasteful number, since it uses less digits than its factorization.

87920885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71228.

The product of its (nonzero) digits is 322560, while the sum is 47.

The square root of 87920885 is about 9376.6137277804. The cubic root of 87920885 is about 444.6626825535.

The spelling of 87920885 in words is "eighty-seven million, nine hundred twenty thousand, eight hundred eighty-five".