742279957 has 2 divisors, whose sum is σ = 742279958. Its totient is φ = 742279956.

The previous prime is 742279927. The next prime is 742279981. The reversal of 742279957 is 759972247.

742279957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 711875761 + 30404196 = 26681^2 + 5514^2 .

It is a cyclic number.

It is not a de Polignac number, because 742279957 - 2¹⁵ = 742247189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742279927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371139978 + 371139979.

It is an arithmetic number, because the mean of its divisors is an integer number (371139979).

Almost surely, 2^742279957 is an apocalyptic number.

It is an amenable number.

742279957 is a deficient number, since it is larger than the sum of its proper divisors (1).

742279957 is an equidigital number, since it uses as much as digits as its factorization.

742279957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 52.

The square root of 742279957 is about 27244.8152315262. The cubic root of 742279957 is about 905.4321499683.

The spelling of 742279957 in words is "seven hundred forty-two million, two hundred seventy-nine thousand, nine hundred fifty-seven".