742673537 has 2 divisors, whose sum is σ = 742673538. Its totient is φ = 742673536.

The previous prime is 742673489. The next prime is 742673551. The reversal of 742673537 is 735376247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 732839041 + 9834496 = 27071^2 + 3136^2 .

It is a cyclic number.

It is not a de Polignac number, because 742673537 - 2²² = 738479233 is a prime.

It is not a weakly prime, because it can be changed into another prime (742673137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371336768 + 371336769.

It is an arithmetic number, because the mean of its divisors is an integer number (371336769).

Almost surely, 2^742673537 is an apocalyptic number.

It is an amenable number.

742673537 is a deficient number, since it is larger than the sum of its proper divisors (1).

742673537 is an equidigital number, since it uses as much as digits as its factorization.

742673537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 740880, while the sum is 44.

The square root of 742673537 is about 27252.0372999892. The cubic root of 742673537 is about 905.5921511540.

The spelling of 742673537 in words is "seven hundred forty-two million, six hundred seventy-three thousand, five hundred thirty-seven".