745606 has 4 divisors (see below), whose sum is σ = 1118412.
Its totient is φ = 372802.
The previous prime is 745601. The next prime is 745609. The reversal of 745606 is 606547.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 606547 = 409 ⋅1483.
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 as a sum of consecutive naturals, namely, 186400 + ... + 186403.
It is an arithmetic number, because the mean of its divisors is an integer number (279603).
2745606 is an apocalyptic number.
745606 is a deficient number, since it is larger than the sum of its proper divisors (372806).
745606 is a wasteful number, since it uses less digits than its factorization.
745606 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 372805.
The product of its (nonzero) digits is 5040, while the sum is 28.
The square root of 745606 is about 863.4848000978.
The cubic root of 745606 is about 90.6782502741.
The spelling of 745606 in words is "seven hundred forty-five thousand, six hundred six".