320870419 has 2 divisors, whose sum is σ = 320870420. Its totient is φ = 320870418.

The previous prime is 320870399. The next prime is 320870467. The reversal of 320870419 is 914078023.

It is a weak prime.

It is an emirp because it is prime and its reverse (914078023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320870419 - 2²⁷ = 186652691 is a prime.

It is a super-2 number, since 2×320870419² = 205915651578471122, which contains 22 as substring.

It is equal to p_17319751 and since 320870419 and 17319751 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (320870479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160435209 + 160435210.

It is an arithmetic number, because the mean of its divisors is an integer number (160435210).

Almost surely, 2^320870419 is an apocalyptic number.

320870419 is a deficient number, since it is larger than the sum of its proper divisors (1).

320870419 is an equidigital number, since it uses as much as digits as its factorization.

320870419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 320870419 is about 17912.8562490743. The cubic root of 320870419 is about 684.6099820378.

The spelling of 320870419 in words is "three hundred twenty million, eight hundred seventy thousand, four hundred nineteen".