746447321 has 2 divisors, whose sum is σ = 746447322. Its totient is φ = 746447320.

The previous prime is 746447297. The next prime is 746447329. The reversal of 746447321 is 123744647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 717168400 + 29278921 = 26780^2 + 5411^2 .

It is a cyclic number.

It is not a de Polignac number, because 746447321 - 2⁶ = 746447257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (746447329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373223660 + 373223661.

It is an arithmetic number, because the mean of its divisors is an integer number (373223661).

Almost surely, 2^746447321 is an apocalyptic number.

It is an amenable number.

746447321 is a deficient number, since it is larger than the sum of its proper divisors (1).

746447321 is an equidigital number, since it uses as much as digits as its factorization.

746447321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 38.

The square root of 746447321 is about 27321.1881330223. The cubic root of 746447321 is about 907.1234372290.

The spelling of 746447321 in words is "seven hundred forty-six million, four hundred forty-seven thousand, three hundred twenty-one".