87903760 has 40 divisors (see below), whose sum is σ = 233574336. Its totient is φ = 30138240.

The previous prime is 87903757. The next prime is 87903797. The reversal of 87903760 is 6730978.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77926 + ... + 79045.

Almost surely, 2^87903760 is an apocalyptic number.

87903760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87903760 is an abundant number, since it is smaller than the sum of its proper divisors (145670576).

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

87903760 is a wasteful number, since it uses less digits than its factorization.

87903760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156991 (or 156985 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 87903760 is about 9375.7005071621. The cubic root of 87903760 is about 444.6338106009.

The spelling of 87903760 in words is "eighty-seven million, nine hundred three thousand, seven hundred sixty".