845740407 has 8 divisors (see below), whose sum is σ = 1187004160. Its totient is φ = 534151800.

The previous prime is 845740403. The next prime is 845740439. The reversal of 845740407 is 704047548.

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

It is not a de Polignac number, because 845740407 - 2² = 845740403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845740403) 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, 7418719 + ... + 7418832.

It is an arithmetic number, because the mean of its divisors is an integer number (148375520).

Almost surely, 2^845740407 is an apocalyptic number.

845740407 is a deficient number, since it is larger than the sum of its proper divisors (341263753).

845740407 is a wasteful number, since it uses less digits than its factorization.

845740407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14837573.

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 845740407 is about 29081.6163065260. The cubic root of 845740407 is about 945.6832426285.

The spelling of 845740407 in words is "eight hundred forty-five million, seven hundred forty thousand, four hundred seven".