745718 has 4 divisors (see below), whose sum is σ = 1118580. Its totient is φ = 372858.

The previous prime is 745711. The next prime is 745727. The reversal of 745718 is 817547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 817547 = 17 ⋅48091.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745711) 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 as a sum of consecutive naturals, namely, 186428 + ... + 186431.

It is an arithmetic number, because the mean of its divisors is an integer number (279645).

2⁷⁴⁵⁷¹⁸ is an apocalyptic number.

745718 is a deficient number, since it is larger than the sum of its proper divisors (372862).

745718 is a wasteful number, since it uses less digits than its factorization.

745718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372861.

The product of its digits is 7840, while the sum is 32.

The square root of 745718 is about 863.5496511493. The cubic root of 745718 is about 90.6827904091.

The spelling of 745718 in words is "seven hundred forty-five thousand, seven hundred eighteen".