742117923 has 16 divisors (see below), whose sum is σ = 1100928000. Its totient is φ = 494073000.

The previous prime is 742117907. The next prime is 742117939. The reversal of 742117923 is 329711247.

742117923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (742117907) and next prime (742117939).

It is not a de Polignac number, because 742117923 - 2⁴ = 742117907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (742117423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1978 + ... + 38576.

It is an arithmetic number, because the mean of its divisors is an integer number (68808000).

Almost surely, 2^742117923 is an apocalyptic number.

742117923 is a deficient number, since it is larger than the sum of its proper divisors (358810077).

742117923 is a wasteful number, since it uses less digits than its factorization.

742117923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37359 (or 37353 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 742117923 is about 27241.8414025190. The cubic root of 742117923 is about 905.3662622179.

The spelling of 742117923 in words is "seven hundred forty-two million, one hundred seventeen thousand, nine hundred twenty-three".