745653 has 8 divisors (see below), whose sum is σ = 1000000. Its totient is φ = 494208.

The previous prime is 745649. The next prime is 745673. The reversal of 745653 is 356547.

745653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 745653 - 2² = 745649 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 745653.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28 + ... + 1221.

It is an arithmetic number, because the mean of its divisors is an integer number (125000).

2⁷⁴⁵⁶⁵³ is an apocalyptic number.

It is an amenable number.

745653 is a deficient number, since it is larger than the sum of its proper divisors (254347).

745653 is a wasteful number, since it uses less digits than its factorization.

745653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451.

The product of its digits is 12600, while the sum is 30.

The square root of 745653 is about 863.5120149714. The cubic root of 745653 is about 90.6801555647.

The spelling of 745653 in words is "seven hundred forty-five thousand, six hundred fifty-three".