87361940 has 24 divisors (see below), whose sum is σ = 183738240. Its totient is φ = 34891808.

The previous prime is 87361933. The next prime is 87361957. The reversal of 87361940 is 4916378.

It is a junction number, because it is equal to n+sod(n) for n = 87361894 and 87361903.

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, 11921 + ... + 17799.

It is an arithmetic number, because the mean of its divisors is an integer number (7655760).

Almost surely, 2^87361940 is an apocalyptic number.

It is an amenable number.

87361940 is an abundant number, since it is smaller than the sum of its proper divisors (96376300).

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

87361940 is a wasteful number, since it uses less digits than its factorization.

87361940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631 (or 6629 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 87361940 is about 9346.7609362816. The cubic root of 87361940 is about 443.7183845756.

The spelling of 87361940 in words is "eighty-seven million, three hundred sixty-one thousand, nine hundred forty".