89264287 has 6 divisors (see below), whose sum is σ = 102044904. Its totient is φ = 76490820.

The previous prime is 89264281. The next prime is 89264293. The reversal of 89264287 is 78246298.

It is an interprime number because it is at equal distance from previous prime (89264281) and next prime (89264293).

It is a de Polignac number, because none of the positive numbers 2^k-89264287 is a prime.

It is a super-2 number, since 2×89264287² = 15936225867236738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89264281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23212 + ... + 26782.

It is an arithmetic number, because the mean of its divisors is an integer number (17007484).

Almost surely, 2^89264287 is an apocalyptic number.

89264287 is a deficient number, since it is larger than the sum of its proper divisors (12780617).

89264287 is an frugal number, since it uses more digits than its factorization.

89264287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7149 (or 3578 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 89264287 is about 9447.9779318117. The cubic root of 89264287 is about 446.9160106917.

The spelling of 89264287 in words is "eighty-nine million, two hundred sixty-four thousand, two hundred eighty-seven".