749575049 has 4 divisors (see below), whose sum is σ = 751267536. Its totient is φ = 747882564.

The previous prime is 749575039. The next prime is 749575051. The reversal of 749575049 is 940575947.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749575049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749574988 and 749575006.

It is not an unprimeable number, because it can be changed into a prime (749575039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845579 + ... + 846464.

It is an arithmetic number, because the mean of its divisors is an integer number (187816884).

Almost surely, 2^749575049 is an apocalyptic number.

It is an amenable number.

749575049 is a deficient number, since it is larger than the sum of its proper divisors (1692487).

749575049 is a wasteful number, since it uses less digits than its factorization.

749575049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692486.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The square root of 749575049 is about 27378.3682676671. The cubic root of 749575049 is about 908.3886668384.

The spelling of 749575049 in words is "seven hundred forty-nine million, five hundred seventy-five thousand, forty-nine".