745676605 has 4 divisors (see below), whose sum is σ = 894811932. Its totient is φ = 596541280.

The previous prime is 745676599. The next prime is 745676611. The reversal of 745676605 is 506676547.

745676605 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506676547 = 13 ⋅38975119.

It is an interprime number because it is at equal distance from previous prime (745676599) and next prime (745676611).

It can be written as a sum of positive squares in 2 ways, for example, as 270174969 + 475501636 = 16437^2 + 21806^2 .

It is not a de Polignac number, because 745676605 - 2¹⁷ = 745545533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74567656 + ... + 74567665.

It is an arithmetic number, because the mean of its divisors is an integer number (223702983).

Almost surely, 2^745676605 is an apocalyptic number.

It is an amenable number.

745676605 is a deficient number, since it is larger than the sum of its proper divisors (149135327).

745676605 is a wasteful number, since it uses less digits than its factorization.

745676605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149135326.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The square root of 745676605 is about 27307.0797596521. The cubic root of 745676605 is about 906.8111243628.

The spelling of 745676605 in words is "seven hundred forty-five million, six hundred seventy-six thousand, six hundred five".