87287497 has 8 divisors (see below), whose sum is σ = 96113952. Its totient is φ = 78609600.

The previous prime is 87287443. The next prime is 87287561. The reversal of 87287497 is 79478278.

It is a happy number.

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 87287497 - 2²³ = 78898889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87287407) 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, 35904 + ... + 38257.

It is an arithmetic number, because the mean of its divisors is an integer number (12014244).

Almost surely, 2^87287497 is an apocalyptic number.

It is an amenable number.

87287497 is a deficient number, since it is larger than the sum of its proper divisors (8826455).

87287497 is a wasteful number, since it uses less digits than its factorization.

87287497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74279.

The product of its digits is 1580544, while the sum is 52.

The square root of 87287497 is about 9342.7777989204. Note that the first 4 decimals coincide. The cubic root of 87287497 is about 443.5923147466.

The spelling of 87287497 in words is "eighty-seven million, two hundred eighty-seven thousand, four hundred ninety-seven".