742172297 has 2 divisors, whose sum is σ = 742172298. Its totient is φ = 742172296.

The previous prime is 742172293. The next prime is 742172309. The reversal of 742172297 is 792271247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 728784016 + 13388281 = 26996^2 + 3659^2 .

It is a cyclic number.

It is not a de Polignac number, because 742172297 - 2² = 742172293 is a prime.

It is not a weakly prime, because it can be changed into another prime (742172293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371086148 + 371086149.

It is an arithmetic number, because the mean of its divisors is an integer number (371086149).

Almost surely, 2^742172297 is an apocalyptic number.

It is an amenable number.

742172297 is a deficient number, since it is larger than the sum of its proper divisors (1).

742172297 is an equidigital number, since it uses as much as digits as its factorization.

742172297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 41.

The square root of 742172297 is about 27242.8393711081. The cubic root of 742172297 is about 905.3883733413.

The spelling of 742172297 in words is "seven hundred forty-two million, one hundred seventy-two thousand, two hundred ninety-seven".