745969733 has 4 divisors (see below), whose sum is σ = 746049708. Its totient is φ = 745889760.

The previous prime is 745969723. The next prime is 745969769. The reversal of 745969733 is 337969547.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 337969547 = 137 ⋅2466931.

It can be written as a sum of positive squares in 2 ways, for example, as 377252929 + 368716804 = 19423^2 + 19202^2 .

It is a cyclic number.

It is not a de Polignac number, because 745969733 - 2⁴ = 745969717 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 (745969723) 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, 23816 + ... + 45377.

It is an arithmetic number, because the mean of its divisors is an integer number (186512427).

Almost surely, 2^745969733 is an apocalyptic number.

It is an amenable number.

745969733 is a deficient number, since it is larger than the sum of its proper divisors (79975).

745969733 is a wasteful number, since it uses less digits than its factorization.

745969733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79974.

The product of its digits is 4286520, while the sum is 53.

The square root of 745969733 is about 27312.4464850734. The cubic root of 745969733 is about 906.9299323047.

The spelling of 745969733 in words is "seven hundred forty-five million, nine hundred sixty-nine thousand, seven hundred thirty-three".