1622979431 has 2 divisors, whose sum is σ = 1622979432. Its totient is φ = 1622979430.

The previous prime is 1622979349. The next prime is 1622979437. The reversal of 1622979431 is 1349792261.

It is a strong prime.

It is an emirp because it is prime and its reverse (1349792261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1622979431 - 2¹⁰ = 1622978407 is a prime.

It is a super-2 number, since 2×1622979431² = 5268124466898167522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1622979437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811489715 + 811489716.

It is an arithmetic number, because the mean of its divisors is an integer number (811489716).

Almost surely, 2^1622979431 is an apocalyptic number.

1622979431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1622979431 is an equidigital number, since it uses as much as digits as its factorization.

1622979431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The square root of 1622979431 is about 40286.2188719666. The cubic root of 1622979431 is about 1175.1798562165.

The spelling of 1622979431 in words is "one billion, six hundred twenty-two million, nine hundred seventy-nine thousand, four hundred thirty-one".