749817387 has 24 divisors (see below), whose sum is σ = 1243719360. Its totient is φ = 430516080.

The previous prime is 749817347. The next prime is 749817391. The reversal of 749817387 is 783718947.

749817387 is a `hidden beast` number, since 7 + 498 + 1 + 73 + 87 = 666.

749817387 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 749817387 - 2¹⁶ = 749751851 is a prime.

It is a super-2 number, since 2×749817387² = 1124452227695015538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (749817347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197433 + ... + 201194.

It is an arithmetic number, because the mean of its divisors is an integer number (51821640).

Almost surely, 2^749817387 is an apocalyptic number.

749817387 is a deficient number, since it is larger than the sum of its proper divisors (493901973).

749817387 is a wasteful number, since it uses less digits than its factorization.

749817387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398663 (or 398660 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 749817387 is about 27382.7936303073. The cubic root of 749817387 is about 908.4865504654.

The spelling of 749817387 in words is "seven hundred forty-nine million, eight hundred seventeen thousand, three hundred eighty-seven".