747914949 has 18 divisors (see below), whose sum is σ = 1147612050. Its totient is φ = 469278336.

The previous prime is 747914941. The next prime is 747914963. The reversal of 747914949 is 949419747.

It can be written as a sum of positive squares in 3 ways, for example, as 257602500 + 490312449 = 16050^2 + 22143^2 .

It is not a de Polignac number, because 747914949 - 2³ = 747914941 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 747914895 and 747914904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747914941) 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 17 ways as a sum of consecutive naturals, for example, 141174 + ... + 146375.

It is an arithmetic number, because the mean of its divisors is an integer number (63756225).

Almost surely, 2^747914949 is an apocalyptic number.

It is an amenable number.

747914949 is a deficient number, since it is larger than the sum of its proper divisors (399697101).

747914949 is a wasteful number, since it uses less digits than its factorization.

747914949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287589 (or 287569 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 747914949 is about 27348.0337318792. The cubic root of 747914949 is about 907.7175618444.

The spelling of 747914949 in words is "seven hundred forty-seven million, nine hundred fourteen thousand, nine hundred forty-nine".