946172321 has 16 divisors (see below), whose sum is σ = 1007510400. Its totient is φ = 886626048.

The previous prime is 946172291. The next prime is 946172323. The reversal of 946172321 is 123271649.

It is a cyclic number.

It is not a de Polignac number, because 946172321 - 2¹⁴ = 946155937 is a prime.

It is a super-2 number, since 2×946172321² = 1790484122053054082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (946172323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456275 + ... + 458343.

It is an arithmetic number, because the mean of its divisors is an integer number (62969400).

Almost surely, 2^946172321 is an apocalyptic number.

It is an amenable number.

946172321 is a deficient number, since it is larger than the sum of its proper divisors (61338079).

946172321 is a wasteful number, since it uses less digits than its factorization.

946172321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488.

The product of its digits is 18144, while the sum is 35.

The square root of 946172321 is about 30759.9141903875. The cubic root of 946172321 is about 981.7255179338.

The spelling of 946172321 in words is "nine hundred forty-six million, one hundred seventy-two thousand, three hundred twenty-one".