1897906696 has 16 divisors (see below), whose sum is σ = 4066943040. Its totient is φ = 813388560.

The previous prime is 1897906691. The next prime is 1897906723. The reversal of 1897906696 is 6966097981.

It is not an unprimeable number, because it can be changed into a prime (1897906691) 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 3 ways as a sum of consecutive naturals, for example, 16945540 + ... + 16945651.

It is an arithmetic number, because the mean of its divisors is an integer number (254183940).

Almost surely, 2^1897906696 is an apocalyptic number.

It is an amenable number.

1897906696 is an abundant number, since it is smaller than the sum of its proper divisors (2169036344).

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

1897906696 is a wasteful number, since it uses less digits than its factorization.

1897906696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33891204 (or 33891200 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 61.

The square root of 1897906696 is about 43564.9709743964. The cubic root of 1897906696 is about 1238.1073050307.

The spelling of 1897906696 in words is "one billion, eight hundred ninety-seven million, nine hundred six thousand, six hundred ninety-six".