86747487 has 8 divisors (see below), whose sum is σ = 116014080. Its totient is φ = 57656280.

The previous prime is 86747473. The next prime is 86747489. The reversal of 86747487 is 78474768.

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

It is not a de Polignac number, because 86747487 - 2⁷ = 86747359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86747489) 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, 42687 + ... + 44672.

It is an arithmetic number, because the mean of its divisors is an integer number (14501760).

Almost surely, 2^86747487 is an apocalyptic number.

86747487 is a deficient number, since it is larger than the sum of its proper divisors (29266593).

86747487 is a wasteful number, since it uses less digits than its factorization.

86747487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87693.

The product of its digits is 2107392, while the sum is 51.

The square root of 86747487 is about 9313.8330992132. The cubic root of 86747487 is about 442.6756505254.

It can be divided in two parts, 8674 and 7487, that added together give a palindrome (16161).

The spelling of 86747487 in words is "eighty-six million, seven hundred forty-seven thousand, four hundred eighty-seven".