87916553 has 8 divisors (see below), whose sum is σ = 94696800. Its totient is φ = 81351648.

The previous prime is 87916547. The next prime is 87916567. The reversal of 87916553 is 35561978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87916553 - 2¹⁶ = 87851017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87916523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52988 + ... + 54621.

It is an arithmetic number, because the mean of its divisors is an integer number (11837100).

Almost surely, 2^87916553 is an apocalyptic number.

It is an amenable number.

87916553 is a deficient number, since it is larger than the sum of its proper divisors (6780247).

87916553 is a wasteful number, since it uses less digits than its factorization.

87916553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107671.

The product of its digits is 226800, while the sum is 44.

The square root of 87916553 is about 9376.3827246972. The cubic root of 87916553 is about 444.6553793575.

The spelling of 87916553 in words is "eighty-seven million, nine hundred sixteen thousand, five hundred fifty-three".