846912397 has 4 divisors (see below), whose sum is σ = 847241856. Its totient is φ = 846582940.

The previous prime is 846912377. The next prime is 846912413. The reversal of 846912397 is 793219648.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 846912397 - 2¹¹ = 846910349 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 846912397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (846912377) 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, 160843 + ... + 166024.

It is an arithmetic number, because the mean of its divisors is an integer number (211810464).

Almost surely, 2^846912397 is an apocalyptic number.

It is an amenable number.

846912397 is a deficient number, since it is larger than the sum of its proper divisors (329459).

846912397 is a wasteful number, since it uses less digits than its factorization.

846912397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329458.

The product of its digits is 653184, while the sum is 49.

The square root of 846912397 is about 29101.7593454416. The cubic root of 846912397 is about 946.1198698052.

The spelling of 846912397 in words is "eight hundred forty-six million, nine hundred twelve thousand, three hundred ninety-seven".