746081909 has 2 divisors, whose sum is σ = 746081910. Its totient is φ = 746081908.

The previous prime is 746081893. The next prime is 746081923. The reversal of 746081909 is 909180647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600397009 + 145684900 = 24503^2 + 12070^2 .

It is a cyclic number.

It is not a de Polignac number, because 746081909 - 2⁴ = 746081893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 746081909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (746081969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373040954 + 373040955.

It is an arithmetic number, because the mean of its divisors is an integer number (373040955).

Almost surely, 2^746081909 is an apocalyptic number.

It is an amenable number.

746081909 is a deficient number, since it is larger than the sum of its proper divisors (1).

746081909 is an equidigital number, since it uses as much as digits as its factorization.

746081909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 746081909 is about 27314.4999771184. The cubic root of 746081909 is about 906.9753902138.

The spelling of 746081909 in words is "seven hundred forty-six million, eighty-one thousand, nine hundred nine".