1394738923 has 4 divisors (see below), whose sum is σ = 1396434448. Its totient is φ = 1393043400.

The previous prime is 1394738911. The next prime is 1394738941. The reversal of 1394738923 is 3298374931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1394738923 - 2¹³ = 1394730731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1394738903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 846528 + ... + 848173.

It is an arithmetic number, because the mean of its divisors is an integer number (349108612).

Almost surely, 2^1394738923 is an apocalyptic number.

1394738923 is a deficient number, since it is larger than the sum of its proper divisors (1695525).

1394738923 is an equidigital number, since it uses as much as digits as its factorization.

1394738923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695524.

The product of its digits is 979776, while the sum is 49.

The square root of 1394738923 is about 37346.2035955464. The cubic root of 1394738923 is about 1117.2858714857.

The spelling of 1394738923 in words is "one billion, three hundred ninety-four million, seven hundred thirty-eight thousand, nine hundred twenty-three".