745416073 has 4 divisors (see below), whose sum is σ = 747797908. Its totient is φ = 743034240.

The previous prime is 745416059. The next prime is 745416109. The reversal of 745416073 is 370614547.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25674489 + 719741584 = 5067^2 + 26828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745416073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745416043) 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, 1190448 + ... + 1191073.

It is an arithmetic number, because the mean of its divisors is an integer number (186949477).

Almost surely, 2^745416073 is an apocalyptic number.

It is an amenable number.

745416073 is a deficient number, since it is larger than the sum of its proper divisors (2381835).

745416073 is a wasteful number, since it uses less digits than its factorization.

745416073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381834.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 745416073 is about 27302.3089316636. The cubic root of 745416073 is about 906.7055017938.

The spelling of 745416073 in words is "seven hundred forty-five million, four hundred sixteen thousand, seventy-three".