845671401 has 8 divisors (see below), whose sum is σ = 1252846560. Its totient is φ = 563780916.

The previous prime is 845671391. The next prime is 845671447. The reversal of 845671401 is 104176548.

It is a happy number.

845671401 is a `hidden beast` number, since 84 + 567 + 14 + 0 + 1 = 666.

It is not a de Polignac number, because 845671401 - 2⁵ = 845671369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (845671451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15660555 + ... + 15660608.

It is an arithmetic number, because the mean of its divisors is an integer number (156605820).

Almost surely, 2^845671401 is an apocalyptic number.

It is an amenable number.

845671401 is a deficient number, since it is larger than the sum of its proper divisors (407175159).

845671401 is a wasteful number, since it uses less digits than its factorization.

845671401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31321172 (or 31321166 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 845671401 is about 29080.4298627101. The cubic root of 845671401 is about 945.6575217366.

The spelling of 845671401 in words is "eight hundred forty-five million, six hundred seventy-one thousand, four hundred one".