746915993 has 2 divisors, whose sum is σ = 746915994. Its totient is φ = 746915992.

The previous prime is 746915989. The next prime is 746915999. The reversal of 746915993 is 399519647.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 746546329 + 369664 = 27323^2 + 608^2 .

It is an emirp because it is prime and its reverse (399519647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 746915993 - 2² = 746915989 is a prime.

It is not a weakly prime, because it can be changed into another prime (746915999) 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, 373457996 + 373457997.

It is an arithmetic number, because the mean of its divisors is an integer number (373457997).

Almost surely, 2^746915993 is an apocalyptic number.

It is an amenable number.

746915993 is a deficient number, since it is larger than the sum of its proper divisors (1).

746915993 is an equidigital number, since it uses as much as digits as its factorization.

746915993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 53.

The square root of 746915993 is about 27329.7638665247. The cubic root of 746915993 is about 907.3132494217.

The spelling of 746915993 in words is "seven hundred forty-six million, nine hundred fifteen thousand, nine hundred ninety-three".