87340020 has 48 divisors (see below), whose sum is σ = 252446208. Its totient is φ = 22538880.

The previous prime is 87340013. The next prime is 87340031. The reversal of 87340020 is 2004378.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21619 + ... + 25338.

It is an arithmetic number, because the mean of its divisors is an integer number (5259296).

Almost surely, 2^87340020 is an apocalyptic number.

It is an amenable number.

87340020 is an abundant number, since it is smaller than the sum of its proper divisors (165106188).

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

87340020 is a wasteful number, since it uses less digits than its factorization.

87340020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47000 (or 46998 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 87340020 is about 9345.5882639885. The cubic root of 87340020 is about 443.6812703182.

Adding to 87340020 its reverse (2004378), we get a palindrome (89344398).

The spelling of 87340020 in words is "eighty-seven million, three hundred forty thousand, twenty".