1394072923 has 2 divisors, whose sum is σ = 1394072924. Its totient is φ = 1394072922.

The previous prime is 1394072903. The next prime is 1394072951. The reversal of 1394072923 is 3292704931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1394072923 - 2²⁵ = 1360518491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1394072903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697036461 + 697036462.

It is an arithmetic number, because the mean of its divisors is an integer number (697036462).

Almost surely, 2^1394072923 is an apocalyptic number.

1394072923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394072923 is an equidigital number, since it uses as much as digits as its factorization.

1394072923 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 40.

The square root of 1394072923 is about 37337.2859618907. The cubic root of 1394072923 is about 1117.1080052558.

The spelling of 1394072923 in words is "one billion, three hundred ninety-four million, seventy-two thousand, nine hundred twenty-three".