87708474 has 64 divisors (see below), whose sum is σ = 235872000. Its totient is φ = 23583744.

The previous prime is 87708473. The next prime is 87708479. The reversal of 87708474 is 47480778.

It is a super-2 number, since 2×87708474² = 15385552822817352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87708473) 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, 399 + ... + 13250.

It is an arithmetic number, because the mean of its divisors is an integer number (3685500).

Almost surely, 2^87708474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87708474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117936000).

87708474 is an abundant number, since it is smaller than the sum of its proper divisors (148163526).

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

87708474 is a wasteful number, since it uses less digits than its factorization.

87708474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13684 (or 13678 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 87708474 is about 9365.2802414023. The cubic root of 87708474 is about 444.3043019861.

The spelling of 87708474 in words is "eighty-seven million, seven hundred eight thousand, four hundred seventy-four".