838792478 has 8 divisors (see below), whose sum is σ = 1332199872. Its totient is φ = 394725856.

The previous prime is 838792477. The next prime is 838792483. The reversal of 838792478 is 874297838.

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

It is a super-2 number, since 2×838792478² = 1407145642298760968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838792477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12335150 + ... + 12335217.

It is an arithmetic number, because the mean of its divisors is an integer number (166524984).

Almost surely, 2^838792478 is an apocalyptic number.

838792478 is a deficient number, since it is larger than the sum of its proper divisors (493407394).

838792478 is a wasteful number, since it uses less digits than its factorization.

838792478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24670386.

The product of its digits is 5419008, while the sum is 56.

The square root of 838792478 is about 28961.9142668436. The cubic root of 838792478 is about 943.0864586680.

The spelling of 838792478 in words is "eight hundred thirty-eight million, seven hundred ninety-two thousand, four hundred seventy-eight".