845395401 has 8 divisors (see below), whose sum is σ = 1145672704. Its totient is φ = 554357520.

The previous prime is 845395393. The next prime is 845395427. The reversal of 845395401 is 104593548.

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

It is not a de Polignac number, because 845395401 - 2³ = 845395393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 845395401.

It is not an unprimeable number, because it can be changed into a prime (845395471) 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, 2309641 + ... + 2310006.

It is an arithmetic number, because the mean of its divisors is an integer number (143209088).

Almost surely, 2^845395401 is an apocalyptic number.

It is an amenable number.

845395401 is a deficient number, since it is larger than the sum of its proper divisors (300277303).

845395401 is a wasteful number, since it uses less digits than its factorization.

845395401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4619711.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 845395401 is about 29075.6840160296. The cubic root of 845395401 is about 945.5546331225.

The spelling of 845395401 in words is "eight hundred forty-five million, three hundred ninety-five thousand, four hundred one".