746893409 has 2 divisors, whose sum is σ = 746893410. Its totient is φ = 746893408.

The previous prime is 746893393. The next prime is 746893451. The reversal of 746893409 is 904398647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 742399009 + 4494400 = 27247^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 746893409 - 2⁴ = 746893393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (746893489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373446704 + 373446705.

It is an arithmetic number, because the mean of its divisors is an integer number (373446705).

Almost surely, 2^746893409 is an apocalyptic number.

It is an amenable number.

746893409 is a deficient number, since it is larger than the sum of its proper divisors (1).

746893409 is an equidigital number, since it uses as much as digits as its factorization.

746893409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 746893409 is about 27329.3506874935. The cubic root of 746893409 is about 907.3041047213.

The spelling of 746893409 in words is "seven hundred forty-six million, eight hundred ninety-three thousand, four hundred nine".