749219761 has 12 divisors (see below), whose sum is σ = 801892224. Its totient is φ = 699766200.

The previous prime is 749219741. The next prime is 749219777. The reversal of 749219761 is 167912947.

749219761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 749219761 - 2⁵ = 749219729 is a prime.

It is a super-2 number, since 2×749219761² = 1122660500545794242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749219741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11016 + ... + 40246.

It is an arithmetic number, because the mean of its divisors is an integer number (66824352).

Almost surely, 2^749219761 is an apocalyptic number.

749219761 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

749219761 is a deficient number, since it is larger than the sum of its proper divisors (52672463).

749219761 is a wasteful number, since it uses less digits than its factorization.

749219761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29340 (or 29321 counting only the distinct ones).

The product of its digits is 190512, while the sum is 46.

The square root of 749219761 is about 27371.8790184379. The cubic root of 749219761 is about 908.2451230185.

The spelling of 749219761 in words is "seven hundred forty-nine million, two hundred nineteen thousand, seven hundred sixty-one".