7870687400 has 48 divisors (see below), whose sum is σ = 19094983200. Its totient is φ = 3011391680.

The previous prime is 7870687337. The next prime is 7870687403. The reversal of 7870687400 is 47860787.

It is not an unprimeable number, because it can be changed into a prime (7870687403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 850910 + ... + 860109.

It is an arithmetic number, because the mean of its divisors is an integer number (397812150).

Almost surely, 2^7870687400 is an apocalyptic number.

It is an amenable number.

7870687400 is an abundant number, since it is smaller than the sum of its proper divisors (11224295800).

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

7870687400 is a wasteful number, since it uses less digits than its factorization.

7870687400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711058 (or 1711049 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 7870687400 is about 88716.8946706319. The cubic root of 7870687400 is about 1989.1653612913.

The spelling of 7870687400 in words is "seven billion, eight hundred seventy million, six hundred eighty-seven thousand, four hundred".