1620463283 has 2 divisors, whose sum is σ = 1620463284. Its totient is φ = 1620463282.

The previous prime is 1620463267. The next prime is 1620463289. The reversal of 1620463283 is 3823640261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1620463283 - 2⁴ = 1620463267 is a prime.

It is a super-2 number, since 2×1620463283² = 5251802503102276178, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1620463289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810231641 + 810231642.

It is an arithmetic number, because the mean of its divisors is an integer number (810231642).

Almost surely, 2^1620463283 is an apocalyptic number.

1620463283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1620463283 is an equidigital number, since it uses as much as digits as its factorization.

1620463283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 1620463283 is about 40254.9783629305. The cubic root of 1620463283 is about 1174.5722379532.

The spelling of 1620463283 in words is "one billion, six hundred twenty million, four hundred sixty-three thousand, two hundred eighty-three".