1406918923 has 2 divisors, whose sum is σ = 1406918924. Its totient is φ = 1406918922.

The previous prime is 1406918893. The next prime is 1406918927. The reversal of 1406918923 is 3298196041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1406918923 - 2²⁵ = 1373364491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1406918923.

It is not a weakly prime, because it can be changed into another prime (1406918927) 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, 703459461 + 703459462.

It is an arithmetic number, because the mean of its divisors is an integer number (703459462).

Almost surely, 2^1406918923 is an apocalyptic number.

1406918923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406918923 is an equidigital number, since it uses as much as digits as its factorization.

1406918923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 1406918923 is about 37508.9179129444. The cubic root of 1406918923 is about 1120.5288008329.

The spelling of 1406918923 in words is "one billion, four hundred six million, nine hundred eighteen thousand, nine hundred twenty-three".