749000001 has 4 divisors (see below), whose sum is σ = 998666672. Its totient is φ = 499333332.

The previous prime is 748999987. The next prime is 749000033. The reversal of 749000001 is 100000947.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 749000001 - 2¹⁰ = 748998977 is a prime.

It is a super-2 number, since 2×749000001² = 1122002002996000002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749000041) 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 3 ways as a sum of consecutive naturals, for example, 124833331 + ... + 124833336.

It is an arithmetic number, because the mean of its divisors is an integer number (249666668).

Almost surely, 2^749000001 is an apocalyptic number.

It is an amenable number.

749000001 is a deficient number, since it is larger than the sum of its proper divisors (249666671).

749000001 is a wasteful number, since it uses less digits than its factorization.

749000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249666670.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 749000001 is about 27367.8643850776. The cubic root of 749000001 is about 908.1563126423.

Adding to 749000001 its reverse (100000947), we get a palindrome (849000948).

The spelling of 749000001 in words is "seven hundred forty-nine million, one", and thus it is an aban number.