846245621 has 8 divisors (see below), whose sum is σ = 912274944. Its totient is φ = 780349680.

The previous prime is 846245599. The next prime is 846245629. The reversal of 846245621 is 126542648.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-846245621 is a prime.

It is a super-2 number, since 2×846245621² = 1432263302123351282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (846245629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19961 + ... + 45726.

It is an arithmetic number, because the mean of its divisors is an integer number (114034368).

Almost surely, 2^846245621 is an apocalyptic number.

It is an amenable number.

846245621 is a deficient number, since it is larger than the sum of its proper divisors (66029323).

846245621 is a wasteful number, since it uses less digits than its factorization.

846245621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66691.

The product of its digits is 92160, while the sum is 38.

The square root of 846245621 is about 29090.3011500397. The cubic root of 846245621 is about 945.8715105284.

The spelling of 846245621 in words is "eight hundred forty-six million, two hundred forty-five thousand, six hundred twenty-one".