845374977 has 12 divisors (see below), whose sum is σ = 1227492864. Its totient is φ = 560631480.

The previous prime is 845374973. The next prime is 845375009. The reversal of 845374977 is 779473548.

It is not a de Polignac number, because 845374977 - 2² = 845374973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (845374973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244173 + ... + 247610.

It is an arithmetic number, because the mean of its divisors is an integer number (102291072).

Almost surely, 2^845374977 is an apocalyptic number.

It is an amenable number.

845374977 is a deficient number, since it is larger than the sum of its proper divisors (382117887).

845374977 is a wasteful number, since it uses less digits than its factorization.

845374977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491980 (or 491977 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The square root of 845374977 is about 29075.3327925924. The cubic root of 845374977 is about 945.5470184752.

The spelling of 845374977 in words is "eight hundred forty-five million, three hundred seventy-four thousand, nine hundred seventy-seven".