1897693952 has 216 divisors, whose sum is σ = 5096059920. Its totient is φ = 695009280.

The previous prime is 1897693937. The next prime is 1897694021. The reversal of 1897693952 is 2593967981.

It is a junction number, because it is equal to n+sod(n) for n = 1897693891 and 1897693900.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2345324 + ... + 2346132.

It is an arithmetic number, because the mean of its divisors is an integer number (23592870).

Almost surely, 2^1897693952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1897693952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2548029960).

1897693952 is an abundant number, since it is smaller than the sum of its proper divisors (3198365968).

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

1897693952 is a wasteful number, since it uses less digits than its factorization.

1897693952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 846 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 59.

The square root of 1897693952 is about 43562.5292195024. The cubic root of 1897693952 is about 1238.0610418251.

The spelling of 1897693952 in words is "one billion, eight hundred ninety-seven million, six hundred ninety-three thousand, nine hundred fifty-two".