749263961 has 2 divisors, whose sum is σ = 749263962. Its totient is φ = 749263960.

The previous prime is 749263943. The next prime is 749263973. The reversal of 749263961 is 169362947.

It is a happy number.

749263961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722803225 + 26460736 = 26885^2 + 5144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749263961 is a prime.

It is a super-2 number, since 2×749263961² = 1122792966506819042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (749263861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374631980 + 374631981.

It is an arithmetic number, because the mean of its divisors is an integer number (374631981).

Almost surely, 2^749263961 is an apocalyptic number.

It is an amenable number.

749263961 is a deficient number, since it is larger than the sum of its proper divisors (1).

749263961 is an equidigital number, since it uses as much as digits as its factorization.

749263961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 749263961 is about 27372.6864045165. The cubic root of 749263961 is about 908.2629832188.

It can be divided in two parts, 74926 and 3961, that added together give a palindrome (78887).

The spelling of 749263961 in words is "seven hundred forty-nine million, two hundred sixty-three thousand, nine hundred sixty-one".