838897956 has 72 divisors (see below), whose sum is σ = 2403885120. Its totient is φ = 244534464.

The previous prime is 838897949. The next prime is 838897967. The reversal of 838897956 is 659798838.

It is a junction number, because it is equal to n+sod(n) for n = 838897893 and 838897902.

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, 38280 + ... + 56063.

Almost surely, 2^838897956 is an apocalyptic number.

It is an amenable number.

838897956 is an abundant number, since it is smaller than the sum of its proper divisors (1564987164).

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

838897956 is a wasteful number, since it uses less digits than its factorization.

838897956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94385 (or 94380 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The square root of 838897956 is about 28963.7351872993. The cubic root of 838897956 is about 943.1259879941.

The spelling of 838897956 in words is "eight hundred thirty-eight million, eight hundred ninety-seven thousand, nine hundred fifty-six".