838470081 has 8 divisors (see below), whose sum is σ = 1118102944. Its totient is φ = 558908640.

The previous prime is 838470053. The next prime is 838470091. The reversal of 838470081 is 180074838.

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

It is a de Polignac number, because none of the positive numbers 2^k-838470081 is a prime.

It is a super-2 number, since 2×838470081² = 1406064153464293122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838470091) 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, 22701 + ... + 46821.

It is an arithmetic number, because the mean of its divisors is an integer number (139762868).

Almost surely, 2^838470081 is an apocalyptic number.

It is an amenable number.

838470081 is a deficient number, since it is larger than the sum of its proper divisors (279632863).

838470081 is a wasteful number, since it uses less digits than its factorization.

838470081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35711.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 838470081 is about 28956.3478532774. The cubic root of 838470081 is about 942.9656154258.

The spelling of 838470081 in words is "eight hundred thirty-eight million, four hundred seventy thousand, eighty-one".