87654877 has 4 divisors (see below), whose sum is σ = 87674076. Its totient is φ = 87635680.

The previous prime is 87654871. The next prime is 87654883. The reversal of 87654877 is 77845678.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (87654871) and next prime (87654883).

It can be written as a sum of positive squares in 2 ways, for example, as 30591961 + 57062916 = 5531^2 + 7554^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87654877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87654871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623 + ... + 13339.

It is an arithmetic number, because the mean of its divisors is an integer number (21918519).

Almost surely, 2^87654877 is an apocalyptic number.

It is an amenable number.

87654877 is a deficient number, since it is larger than the sum of its proper divisors (19199).

87654877 is a wasteful number, since it uses less digits than its factorization.

87654877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19198.

The product of its digits is 2634240, while the sum is 52.

The square root of 87654877 is about 9362.4183307519. The cubic root of 87654877 is about 444.2137815424.

The spelling of 87654877 in words is "eighty-seven million, six hundred fifty-four thousand, eight hundred seventy-seven".