321413487 has 16 divisors (see below), whose sum is σ = 454336512. Its totient is φ = 201756960.

The previous prime is 321413437. The next prime is 321413489. The reversal of 321413487 is 784314123.

It is not a de Polignac number, because 321413487 - 2⁸ = 321413231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321413489) 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, 43263 + ... + 50144.

It is an arithmetic number, because the mean of its divisors is an integer number (28396032).

Almost surely, 2^321413487 is an apocalyptic number.

321413487 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

321413487 is a deficient number, since it is larger than the sum of its proper divisors (132923025).

321413487 is a wasteful number, since it uses less digits than its factorization.

321413487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93478.

The product of its digits is 16128, while the sum is 33.

The square root of 321413487 is about 17928.0084504665. The cubic root of 321413487 is about 684.9959947907.

The spelling of 321413487 in words is "three hundred twenty-one million, four hundred thirteen thousand, four hundred eighty-seven".