745527739 has 4 divisors (see below), whose sum is σ = 813303000. Its totient is φ = 677752480.

The previous prime is 745527683. The next prime is 745527791. The reversal of 745527739 is 937725547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 937725547 = 11 ⋅85247777.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745527739 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 745527692 and 745527701.

It is not an unprimeable number, because it can be changed into a prime (745527539) 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, 33887614 + ... + 33887635.

It is an arithmetic number, because the mean of its divisors is an integer number (203325750).

Almost surely, 2^745527739 is an apocalyptic number.

745527739 is a deficient number, since it is larger than the sum of its proper divisors (67775261).

745527739 is a wasteful number, since it uses less digits than its factorization.

745527739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67775260.

The product of its digits is 1852200, while the sum is 49.

The square root of 745527739 is about 27304.3538469600. The cubic root of 745527739 is about 906.7507754447.

The spelling of 745527739 in words is "seven hundred forty-five million, five hundred twenty-seven thousand, seven hundred thirty-nine".