838172894 has 8 divisors (see below), whose sum is σ = 1353971640. Its totient is φ = 386849016.

The previous prime is 838172893. The next prime is 838172911. The reversal of 838172894 is 498271838.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838172893) 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, 16118684 + ... + 16118735.

It is an arithmetic number, because the mean of its divisors is an integer number (169246455).

Almost surely, 2^838172894 is an apocalyptic number.

838172894 is a deficient number, since it is larger than the sum of its proper divisors (515798746).

838172894 is a wasteful number, since it uses less digits than its factorization.

838172894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32237434.

The product of its digits is 774144, while the sum is 50.

The square root of 838172894 is about 28951.2157603096. The cubic root of 838172894 is about 942.8541941422.

The spelling of 838172894 in words is "eight hundred thirty-eight million, one hundred seventy-two thousand, eight hundred ninety-four".