321494895 has 12 divisors (see below), whose sum is σ = 557257896. Its totient is φ = 171463920.

The previous prime is 321494891. The next prime is 321494903. The reversal of 321494895 is 598494123.

It is not a de Polignac number, because 321494895 - 2² = 321494891 is a prime.

It is a super-2 number, since 2×321494895² = 206717935022122050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 7144331 = 321494895 / (3 + 2 + 1 + 4 + 9 + 4 + 8 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 321494895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321494891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3572121 + ... + 3572210.

It is an arithmetic number, because the mean of its divisors is an integer number (46438158).

Almost surely, 2^321494895 is an apocalyptic number.

321494895 is a deficient number, since it is larger than the sum of its proper divisors (235763001).

321494895 is a wasteful number, since it uses less digits than its factorization.

321494895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144342 (or 7144339 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 321494895 is about 17930.2787206446. The cubic root of 321494895 is about 685.0538221158.

The spelling of 321494895 in words is "three hundred twenty-one million, four hundred ninety-four thousand, eight hundred ninety-five".