542396923 has 2 divisors, whose sum is σ = 542396924. Its totient is φ = 542396922.

The previous prime is 542396887. The next prime is 542396929. The reversal of 542396923 is 329693245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542396923 - 2⁹ = 542396411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542396923.

It is not a weakly prime, because it can be changed into another prime (542396929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271198461 + 271198462.

It is an arithmetic number, because the mean of its divisors is an integer number (271198462).

Almost surely, 2^542396923 is an apocalyptic number.

542396923 is a deficient number, since it is larger than the sum of its proper divisors (1).

542396923 is an equidigital number, since it uses as much as digits as its factorization.

542396923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 43.

The square root of 542396923 is about 23289.4165448600. The cubic root of 542396923 is about 815.5283677849.

The spelling of 542396923 in words is "five hundred forty-two million, three hundred ninety-six thousand, nine hundred twenty-three".