742926757 has 2 divisors, whose sum is σ = 742926758. Its totient is φ = 742926756.

The previous prime is 742926713. The next prime is 742926773. The reversal of 742926757 is 757629247.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659770596 + 83156161 = 25686^2 + 9119^2 .

It is a cyclic number.

It is not a de Polignac number, because 742926757 - 2¹¹ = 742924709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 742926757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742926797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371463378 + 371463379.

It is an arithmetic number, because the mean of its divisors is an integer number (371463379).

Almost surely, 2^742926757 is an apocalyptic number.

It is an amenable number.

742926757 is a deficient number, since it is larger than the sum of its proper divisors (1).

742926757 is an equidigital number, since it uses as much as digits as its factorization.

742926757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 49.

The square root of 742926757 is about 27256.6827952339. The cubic root of 742926757 is about 905.6950622250.

The spelling of 742926757 in words is "seven hundred forty-two million, nine hundred twenty-six thousand, seven hundred fifty-seven".