654738870 has 16 divisors (see below), whose sum is σ = 1571373360. Its totient is φ = 174597024.

The previous prime is 654738859. The next prime is 654738947. The reversal of 654738870 is 78837456.

It is a congruent number.

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, 10912285 + ... + 10912344.

It is an arithmetic number, because the mean of its divisors is an integer number (98210835).

Almost surely, 2^654738870 is an apocalyptic number.

654738870 is an abundant number, since it is smaller than the sum of its proper divisors (916634490).

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

654738870 is a wasteful number, since it uses less digits than its factorization.

654738870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21824639.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 654738870 is about 25587.8656788721. The cubic root of 654738870 is about 868.3391354967.

The spelling of 654738870 in words is "six hundred fifty-four million, seven hundred thirty-eight thousand, eight hundred seventy".