87893091 has 48 divisors (see below), whose sum is σ = 154033152. Its totient is φ = 47563200.

The previous prime is 87893089. The next prime is 87893119. The reversal of 87893091 is 19039878.

It is not a de Polignac number, because 87893091 - 2¹ = 87893089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87893011) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 38796 + ... + 40998.

It is an arithmetic number, because the mean of its divisors is an integer number (3209024).

Almost surely, 2^87893091 is an apocalyptic number.

87893091 is a deficient number, since it is larger than the sum of its proper divisors (66140061).

87893091 is a wasteful number, since it uses less digits than its factorization.

87893091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264 (or 2261 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 87893091 is about 9375.1315190775. The cubic root of 87893091 is about 444.6158212678.

The spelling of 87893091 in words is "eighty-seven million, eight hundred ninety-three thousand, ninety-one".