87501764 has 24 divisors (see below), whose sum is σ = 184215360. Its totient is φ = 35526816.

The previous prime is 87501727. The next prime is 87501767. The reversal of 87501764 is 46710578.

It is a super-2 number, since 2×87501764² = 15313117406223392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (87501767) 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, 81707 + ... + 82770.

It is an arithmetic number, because the mean of its divisors is an integer number (7675640).

Almost surely, 2^87501764 is an apocalyptic number.

It is an amenable number.

87501764 is an abundant number, since it is smaller than the sum of its proper divisors (96713596).

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

87501764 is a wasteful number, since it uses less digits than its factorization.

87501764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164507 (or 164505 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 87501764 is about 9354.2377562258. The cubic root of 87501764 is about 443.9549842087.

The spelling of 87501764 in words is "eighty-seven million, five hundred one thousand, seven hundred sixty-four".