87151823 has 12 divisors (see below), whose sum is σ = 96101544. Its totient is φ = 78975600.

The previous prime is 87151793. The next prime is 87151829. The reversal of 87151823 is 32815178.

It is not a de Polignac number, because 87151823 - 2⁶ = 87151759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87151829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44168 + ... + 46098.

It is an arithmetic number, because the mean of its divisors is an integer number (8008462).

Almost surely, 2^87151823 is an apocalyptic number.

87151823 is a deficient number, since it is larger than the sum of its proper divisors (8949721).

87151823 is a wasteful number, since it uses less digits than its factorization.

87151823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326 (or 2315 counting only the distinct ones).

The product of its digits is 13440, while the sum is 35.

The square root of 87151823 is about 9335.5140726154. The cubic root of 87151823 is about 443.3623652322.

The spelling of 87151823 in words is "eighty-seven million, one hundred fifty-one thousand, eight hundred twenty-three".