838977397 has 8 divisors (see below), whose sum is σ = 867218432. Its totient is φ = 810810000.

The previous prime is 838977389. The next prime is 838977443. The reversal of 838977397 is 793779838.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 838977397 - 2³ = 838977389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838977497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5263 + ... + 41299.

It is an arithmetic number, because the mean of its divisors is an integer number (108402304).

Almost surely, 2^838977397 is an apocalyptic number.

It is an amenable number.

838977397 is a deficient number, since it is larger than the sum of its proper divisors (28241035).

838977397 is a wasteful number, since it uses less digits than its factorization.

838977397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36819.

The product of its digits is 16003008, while the sum is 61.

The square root of 838977397 is about 28965.1065421828. The cubic root of 838977397 is about 943.1557574101.

The spelling of 838977397 in words is "eight hundred thirty-eight million, nine hundred seventy-seven thousand, three hundred ninety-seven".