161847408 has 20 divisors (see below), whose sum is σ = 418105928. Its totient is φ = 53949120.

The previous prime is 161847407. The next prime is 161847409. The reversal of 161847408 is 804748161.

161847408 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161847407) and next prime (161847409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161847401) 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, 1685863 + ... + 1685958.

Almost surely, 2^161847408 is an apocalyptic number.

It is an amenable number.

161847408 is an abundant number, since it is smaller than the sum of its proper divisors (256258520).

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

161847408 is a wasteful number, since it uses less digits than its factorization.

161847408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371832 (or 3371826 counting only the distinct ones).

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

The square root of 161847408 is about 12721.9262692408. The cubic root of 161847408 is about 544.9649647820.

The spelling of 161847408 in words is "one hundred sixty-one million, eight hundred forty-seven thousand, four hundred eight".