946316021 has 16 divisors (see below), whose sum is σ = 1091301120. Its totient is φ = 803811840.

The previous prime is 946315987. The next prime is 946316027. The reversal of 946316021 is 120613649.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-946316021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (946316027) 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 15 ways as a sum of consecutive naturals, for example, 453701 + ... + 455781.

It is an arithmetic number, because the mean of its divisors is an integer number (68206320).

Almost surely, 2^946316021 is an apocalyptic number.

It is an amenable number.

946316021 is a deficient number, since it is larger than the sum of its proper divisors (144985099).

946316021 is a wasteful number, since it uses less digits than its factorization.

946316021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 946316021 is about 30762.2499339694. The cubic root of 946316021 is about 981.7752152995.

The spelling of 946316021 in words is "nine hundred forty-six million, three hundred sixteen thousand, twenty-one".