87402877 has 4 divisors (see below), whose sum is σ = 87981856. Its totient is φ = 86823900.

The previous prime is 87402871. The next prime is 87402881. The reversal of 87402877 is 77820478.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87402877 - 2¹¹ = 87400829 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 (87402871) 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, 289263 + ... + 289564.

It is an arithmetic number, because the mean of its divisors is an integer number (21995464).

Almost surely, 2^87402877 is an apocalyptic number.

It is an amenable number.

87402877 is a deficient number, since it is larger than the sum of its proper divisors (578979).

87402877 is a wasteful number, since it uses less digits than its factorization.

87402877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578978.

The product of its (nonzero) digits is 175616, while the sum is 43.

The square root of 87402877 is about 9348.9505828194. The cubic root of 87402877 is about 443.7876812014.

The spelling of 87402877 in words is "eighty-seven million, four hundred two thousand, eight hundred seventy-seven".