1607992868 has 6 divisors (see below), whose sum is σ = 2813987526. Its totient is φ = 803996432.

The previous prime is 1607992853. The next prime is 1607992873. The reversal of 1607992868 is 8682997061.

It can be written as a sum of positive squares in only one way, i.e., 1603361764 + 4631104 = 40042^2 + 2152^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200999105 + ... + 200999112.

It is an arithmetic number, because the mean of its divisors is an integer number (468997921).

Almost surely, 2^1607992868 is an apocalyptic number.

It is an amenable number.

1607992868 is a deficient number, since it is larger than the sum of its proper divisors (1205994658).

1607992868 is a wasteful number, since it uses less digits than its factorization.

1607992868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401998221 (or 401998219 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 56.

The square root of 1607992868 is about 40099.7863834709. The cubic root of 1607992868 is about 1171.5514684551.

The spelling of 1607992868 in words is "one billion, six hundred seven million, nine hundred ninety-two thousand, eight hundred sixty-eight".