740673617 has 2 divisors, whose sum is σ = 740673618. Its totient is φ = 740673616.

The previous prime is 740673553. The next prime is 740673631. The reversal of 740673617 is 716376047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 641153041 + 99520576 = 25321^2 + 9976^2 .

It is an emirp because it is prime and its reverse (716376047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 740673617 - 2⁶ = 740673553 is a prime.

It is not a weakly prime, because it can be changed into another prime (740673217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370336808 + 370336809.

It is an arithmetic number, because the mean of its divisors is an integer number (370336809).

Almost surely, 2^740673617 is an apocalyptic number.

It is an amenable number.

740673617 is a deficient number, since it is larger than the sum of its proper divisors (1).

740673617 is an equidigital number, since it uses as much as digits as its factorization.

740673617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 740673617 is about 27215.3195277954. The cubic root of 740673617 is about 904.7785410931.

The spelling of 740673617 in words is "seven hundred forty million, six hundred seventy-three thousand, six hundred seventeen".