746646913 has 2 divisors, whose sum is σ = 746646914. Its totient is φ = 746646912.

The previous prime is 746646889. The next prime is 746646917. The reversal of 746646913 is 319646647.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 727488784 + 19158129 = 26972^2 + 4377^2 .

It is an emirp because it is prime and its reverse (319646647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 746646913 - 2¹³ = 746638721 is a prime.

It is a super-2 number, since 2×746646913² = 1114963225384859138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (746646917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373323456 + 373323457.

It is an arithmetic number, because the mean of its divisors is an integer number (373323457).

Almost surely, 2^746646913 is an apocalyptic number.

It is an amenable number.

746646913 is a deficient number, since it is larger than the sum of its proper divisors (1).

746646913 is an equidigital number, since it uses as much as digits as its factorization.

746646913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

The square root of 746646913 is about 27324.8405850794. The cubic root of 746646913 is about 907.2042817133.

The spelling of 746646913 in words is "seven hundred forty-six million, six hundred forty-six thousand, nine hundred thirteen".