86974288 has 20 divisors (see below), whose sum is σ = 171277108. Its totient is φ = 42773760.

The previous prime is 86974213. The next prime is 86974291. The reversal of 86974288 is 88247968.

It can be written as a sum of positive squares in 2 ways, for example, as 16548624 + 70425664 = 4068^2 + 8392^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43581 + ... + 45532.

Almost surely, 2^86974288 is an apocalyptic number.

It is an amenable number.

86974288 is a deficient number, since it is larger than the sum of its proper divisors (84302820).

86974288 is a wasteful number, since it uses less digits than its factorization.

86974288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89182 (or 89176 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 52.

The square root of 86974288 is about 9326.0006433626. Note that the first 3 decimals coincide. The cubic root of 86974288 is about 443.0611061073.

It can be divided in two parts, 869 and 74288, that added together give a palindrome (75157).

The spelling of 86974288 in words is "eighty-six million, nine hundred seventy-four thousand, two hundred eighty-eight".