749222947 has 16 divisors (see below), whose sum is σ = 823530240. Its totient is φ = 675973600.

The previous prime is 749222941. The next prime is 749222951.

749222947 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 749222947 - 2³ = 749222939 is a prime.

It is a super-2 number, since 2×749222947² = 1122670048622729618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749222897 and 749222906.

It is not an unprimeable number, because it can be changed into a prime (749222941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330488 + ... + 1331050.

It is an arithmetic number, because the mean of its divisors is an integer number (51470640).

Almost surely, 2^749222947 is an apocalyptic number.

749222947 is a deficient number, since it is larger than the sum of its proper divisors (74307293).

749222947 is a wasteful number, since it uses less digits than its factorization.

749222947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274.

The product of its digits is 508032, while the sum is 46.

The square root of 749222947 is about 27371.9372167919. The cubic root of 749222947 is about 908.2464104311.

The spelling of 749222947 in words is "seven hundred forty-nine million, two hundred twenty-two thousand, nine hundred forty-seven".