87861459 has 12 divisors (see below), whose sum is σ = 136275144. Its totient is φ = 50206464.

The previous prime is 87861391. The next prime is 87861461. The reversal of 87861459 is 95416878.

It is not a de Polignac number, because 87861459 - 2⁸ = 87861203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87861469) 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, 298702 + ... + 298995.

It is an arithmetic number, because the mean of its divisors is an integer number (11356262).

Almost surely, 2^87861459 is an apocalyptic number.

87861459 is a deficient number, since it is larger than the sum of its proper divisors (48413685).

87861459 is a wasteful number, since it uses less digits than its factorization.

87861459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597714 (or 597707 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 87861459 is about 9373.4443509310. Note that the first 3 decimals coincide. The cubic root of 87861459 is about 444.5624770097.

The spelling of 87861459 in words is "eighty-seven million, eight hundred sixty-one thousand, four hundred fifty-nine".