749083945 has 8 divisors (see below), whose sum is σ = 904097736. Its totient is φ = 595802496.

The previous prime is 749083939. The next prime is 749083999. The reversal of 749083945 is 549380947.

It can be written as a sum of positive squares in 4 ways, for example, as 200165904 + 548918041 = 14148^2 + 23429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 749083945 - 2¹⁷ = 748952873 is a prime.

It is a super-2 number, since 2×749083945² = 1122253513313526050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432132 + ... + 433861.

It is an arithmetic number, because the mean of its divisors is an integer number (113012217).

Almost surely, 2^749083945 is an apocalyptic number.

It is an amenable number.

749083945 is a deficient number, since it is larger than the sum of its proper divisors (155013791).

749083945 is a wasteful number, since it uses less digits than its factorization.

749083945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866171.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 749083945 is about 27369.3979656112. The cubic root of 749083945 is about 908.1902385104.

The spelling of 749083945 in words is "seven hundred forty-nine million, eighty-three thousand, nine hundred forty-five".