746919661 has 2 divisors, whose sum is σ = 746919662. Its totient is φ = 746919660.

The previous prime is 746919643. The next prime is 746919683. The reversal of 746919661 is 166919647.

746919661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 557857161 + 189062500 = 23619^2 + 13750^2 .

It is an emirp because it is prime and its reverse (166919647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 746919661 - 2¹³ = 746911469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (746919601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373459830 + 373459831.

It is an arithmetic number, because the mean of its divisors is an integer number (373459831).

Almost surely, 2^746919661 is an apocalyptic number.

It is an amenable number.

746919661 is a deficient number, since it is larger than the sum of its proper divisors (1).

746919661 is an equidigital number, since it uses as much as digits as its factorization.

746919661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 746919661 is about 27329.8309727667. The cubic root of 746919661 is about 907.3147346488.

The spelling of 746919661 in words is "seven hundred forty-six million, nine hundred nineteen thousand, six hundred sixty-one".