87016477 has 4 divisors (see below), whose sum is σ = 89040160. Its totient is φ = 84992796.

The previous prime is 87016471. The next prime is 87016483. The reversal of 87016477 is 77461078.

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 an interprime number because it is at equal distance from previous prime (87016471) and next prime (87016483).

It is a cyclic number.

It is not a de Polignac number, because 87016477 - 2¹⁵ = 86983709 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 (87016471) 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, 1011777 + ... + 1011862.

It is an arithmetic number, because the mean of its divisors is an integer number (22260040).

Almost surely, 2^87016477 is an apocalyptic number.

It is an amenable number.

87016477 is a deficient number, since it is larger than the sum of its proper divisors (2023683).

87016477 is a wasteful number, since it uses less digits than its factorization.

87016477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023682.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 87016477 is about 9328.2622711843. The cubic root of 87016477 is about 443.1327337261.

The spelling of 87016477 in words is "eighty-seven million, sixteen thousand, four hundred seventy-seven".