749909773 has 4 divisors (see below), whose sum is σ = 764059068. Its totient is φ = 735760480.

The previous prime is 749909759. The next prime is 749909789. The reversal of 749909773 is 377909947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 377909947 = 11197 ⋅33751.

It can be written as a sum of positive squares in 2 ways, for example, as 585736804 + 164172969 = 24202^2 + 12813^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749909773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749909873) 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, 7074568 + ... + 7074673.

It is an arithmetic number, because the mean of its divisors is an integer number (191014767).

Almost surely, 2^749909773 is an apocalyptic number.

It is an amenable number.

749909773 is a deficient number, since it is larger than the sum of its proper divisors (14149295).

749909773 is a wasteful number, since it uses less digits than its factorization.

749909773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14149294.

The product of its (nonzero) digits is 3000564, while the sum is 55.

The square root of 749909773 is about 27384.4805136048. The cubic root of 749909773 is about 908.5238608794.

The spelling of 749909773 in words is "seven hundred forty-nine million, nine hundred nine thousand, seven hundred seventy-three".