846340621 has 4 divisors (see below), whose sum is σ = 967246432. Its totient is φ = 725434812.

The previous prime is 846340613. The next prime is 846340633. The reversal of 846340621 is 126043648.

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 846340621 - 2³ = 846340613 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 (846340681) 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, 60452895 + ... + 60452908.

It is an arithmetic number, because the mean of its divisors is an integer number (241811608).

Almost surely, 2^846340621 is an apocalyptic number.

It is an amenable number.

846340621 is a deficient number, since it is larger than the sum of its proper divisors (120905811).

846340621 is a wasteful number, since it uses less digits than its factorization.

846340621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120905810.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 846340621 is about 29091.9339508394. The cubic root of 846340621 is about 945.9069038897.

The spelling of 846340621 in words is "eight hundred forty-six million, three hundred forty thousand, six hundred twenty-one".