745957 has 4 divisors (see below), whose sum is σ = 766156. Its totient is φ = 725760.

The previous prime is 745951. The next prime is 745973. The reversal of 745957 is 759547.

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

It can be written as a sum of positive squares in 2 ways, for example, as 586756 + 159201 = 766^2 + 399^2 .

It is a cyclic number.

It is not a de Polignac number, because 745957 - 2¹⁵ = 713189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 20161 = 745957 / (7 + 4 + 5 + 9 + 5 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10044 + ... + 10117.

It is an arithmetic number, because the mean of its divisors is an integer number (191539).

2⁷⁴⁵⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

745957 is a deficient number, since it is larger than the sum of its proper divisors (20199).

745957 is a wasteful number, since it uses less digits than its factorization.

745957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20198.

The product of its digits is 44100, while the sum is 37.

The square root of 745957 is about 863.6880223785. The cubic root of 745957 is about 90.6924772129.

The spelling of 745957 in words is "seven hundred forty-five thousand, nine hundred fifty-seven".