87451392 has 72 divisors (see below), whose sum is σ = 266014336. Its totient is φ = 24984576.

The previous prime is 87451381. The next prime is 87451409. The reversal of 87451392 is 29315478.

It is a self number, because there is not a number n which added to its sum of digits gives 87451392.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2758 + ... + 13509.

Almost surely, 2^87451392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87451392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133007168).

87451392 is an abundant number, since it is smaller than the sum of its proper divisors (178562944).

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

87451392 is a wasteful number, since it uses less digits than its factorization.

87451392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16293 (or 16279 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 87451392 is about 9351.5448991062. The cubic root of 87451392 is about 443.8697775720.

The spelling of 87451392 in words is "eighty-seven million, four hundred fifty-one thousand, three hundred ninety-two".