1400922979 has 2 divisors, whose sum is σ = 1400922980. Its totient is φ = 1400922978.

The previous prime is 1400922959. The next prime is 1400922983. The reversal of 1400922979 is 9792290041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400922979 - 2¹³ = 1400914787 is a prime.

It is not a weakly prime, because it can be changed into another prime (1400922959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700461489 + 700461490.

It is an arithmetic number, because the mean of its divisors is an integer number (700461490).

Almost surely, 2^1400922979 is an apocalyptic number.

1400922979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400922979 is an equidigital number, since it uses as much as digits as its factorization.

1400922979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 1400922979 is about 37428.9056612667. The cubic root of 1400922979 is about 1118.9347276955.

The spelling of 1400922979 in words is "one billion, four hundred million, nine hundred twenty-two thousand, nine hundred seventy-nine".