320332487 has 2 divisors, whose sum is σ = 320332488. Its totient is φ = 320332486.

The previous prime is 320332483. The next prime is 320332501. The reversal of 320332487 is 784233023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320332487 - 2² = 320332483 is a prime.

It is a super-2 number, since 2×320332487² = 205225804455210338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320332483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160166243 + 160166244.

It is an arithmetic number, because the mean of its divisors is an integer number (160166244).

Almost surely, 2^320332487 is an apocalyptic number.

320332487 is a deficient number, since it is larger than the sum of its proper divisors (1).

320332487 is an equidigital number, since it uses as much as digits as its factorization.

320332487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 320332487 is about 17897.8347014380. The cubic root of 320332487 is about 684.2271903274.

The spelling of 320332487 in words is "three hundred twenty million, three hundred thirty-two thousand, four hundred eighty-seven".