87429792 has 48 divisors (see below), whose sum is σ = 241587360. Its totient is φ = 27608832.

The previous prime is 87429791. The next prime is 87429821. The reversal of 87429792 is 29792478.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (87429791) 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, 22143 + ... + 25790.

It is an arithmetic number, because the mean of its divisors is an integer number (5033070).

Almost surely, 2^87429792 is an apocalyptic number.

It is an amenable number.

87429792 is an abundant number, since it is smaller than the sum of its proper divisors (154157568).

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

87429792 is a wasteful number, since it uses less digits than its factorization.

87429792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47965 (or 47957 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 87429792 is about 9350.3899383929. The cubic root of 87429792 is about 443.8332301200.

The spelling of 87429792 in words is "eighty-seven million, four hundred twenty-nine thousand, seven hundred ninety-two".