745607 has 4 divisors (see below), whose sum is σ = 747840. Its totient is φ = 743376.

The previous prime is 745601. The next prime is 745609. The reversal of 745607 is 706547.

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

It is a cyclic number.

It is not a de Polignac number, because 745607 - 2⁶ = 745543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 745607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745601) 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, 503 + ... + 1320.

It is an arithmetic number, because the mean of its divisors is an integer number (186960).

2⁷⁴⁵⁶⁰⁷ is an apocalyptic number.

745607 is a deficient number, since it is larger than the sum of its proper divisors (2233).

745607 is a wasteful number, since it uses less digits than its factorization.

745607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 745607 is about 863.4853791466. The cubic root of 745607 is about 90.6782908131.

Subtracting from 745607 its reverse (706547), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 745607 in words is "seven hundred forty-five thousand, six hundred seven".