745670 has 8 divisors (see below), whose sum is σ = 1342224. Its totient is φ = 298264.

The previous prime is 745649. The next prime is 745673. The reversal of 745670 is 76547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745673) by changing a digit.

745670 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37274 + ... + 37293.

It is an arithmetic number, because the mean of its divisors is an integer number (167778).

2⁷⁴⁵⁶⁷⁰ is an apocalyptic number.

745670 is a deficient number, since it is larger than the sum of its proper divisors (596554).

745670 is a wasteful number, since it uses less digits than its factorization.

745670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74574.

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

The square root of 745670 is about 863.5218584379. The cubic root of 745670 is about 90.6808446926.

The spelling of 745670 in words is "seven hundred forty-five thousand, six hundred seventy".