89475287 has 16 divisors (see below), whose sum is σ = 100859904. Its totient is φ = 78660000.

The previous prime is 89475283. The next prime is 89475299. The reversal of 89475287 is 78257498.

It is a cyclic number.

It is not a de Polignac number, because 89475287 - 2² = 89475283 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 (89475283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77162 + ... + 78312.

It is an arithmetic number, because the mean of its divisors is an integer number (6303744).

Almost surely, 2^89475287 is an apocalyptic number.

89475287 is a deficient number, since it is larger than the sum of its proper divisors (11384617).

89475287 is a wasteful number, since it uses less digits than its factorization.

89475287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390.

The product of its digits is 1128960, while the sum is 50.

The square root of 89475287 is about 9459.1377514021. The cubic root of 89475287 is about 447.2678687465.

The spelling of 89475287 in words is "eighty-nine million, four hundred seventy-five thousand, two hundred eighty-seven".