87464718 has 64 divisors (see below), whose sum is σ = 213292800. Its totient is φ = 26347680.

The previous prime is 87464717. The next prime is 87464719. The reversal of 87464718 is 81746478.

It is an interprime number because it is at equal distance from previous prime (87464717) and next prime (87464719).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87464717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135705 + ... + 136347.

It is an arithmetic number, because the mean of its divisors is an integer number (3332700).

Almost surely, 2^87464718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87464718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106646400).

87464718 is an abundant number, since it is smaller than the sum of its proper divisors (125828082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87464718 is a wasteful number, since it uses less digits than its factorization.

87464718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894 (or 888 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 87464718 is about 9352.2573745594. The cubic root of 87464718 is about 443.8923223179.

The spelling of 87464718 in words is "eighty-seven million, four hundred sixty-four thousand, seven hundred eighteen".