749677993 has 2 divisors, whose sum is σ = 749677994. Its totient is φ = 749677992.

The previous prime is 749677969. The next prime is 749678009. The reversal of 749677993 is 399776947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554461209 + 195216784 = 23547^2 + 13972^2 .

It is a cyclic number.

It is not a de Polignac number, because 749677993 - 2⁵ = 749677961 is a prime.

It is not a weakly prime, because it can be changed into another prime (749677963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374838996 + 374838997.

It is an arithmetic number, because the mean of its divisors is an integer number (374838997).

Almost surely, 2^749677993 is an apocalyptic number.

It is an amenable number.

749677993 is a deficient number, since it is larger than the sum of its proper divisors (1).

749677993 is an equidigital number, since it uses as much as digits as its factorization.

749677993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18003384, while the sum is 61.

The square root of 749677993 is about 27380.2482275088. The cubic root of 749677993 is about 908.4302499026.

The spelling of 749677993 in words is "seven hundred forty-nine million, six hundred seventy-seven thousand, nine hundred ninety-three".