749464893 has 20 divisors (see below), whose sum is σ = 1158180540. Its totient is φ = 482412672.

The previous prime is 749464889. The next prime is 749464921. The reversal of 749464893 is 398464947.

It is a happy number.

749464893 is a `hidden beast` number, since 7 + 494 + 64 + 8 + 93 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 616131684 + 133333209 = 24822^2 + 11547^2 .

It is not a de Polignac number, because 749464893 - 2² = 749464889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749464813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 157180 + ... + 161877.

It is an arithmetic number, because the mean of its divisors is an integer number (57909027).

Almost surely, 2^749464893 is an apocalyptic number.

It is an amenable number.

749464893 is a deficient number, since it is larger than the sum of its proper divisors (408715647).

749464893 is a wasteful number, since it uses less digits than its factorization.

749464893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319098 (or 319089 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 749464893 is about 27376.3564595437. The cubic root of 749464893 is about 908.3441663514.

Adding to 749464893 its sum of digits (54), we get a palindrome (749464947).

The spelling of 749464893 in words is "seven hundred forty-nine million, four hundred sixty-four thousand, eight hundred ninety-three".