745897 has 4 divisors (see below), whose sum is σ = 752976. Its totient is φ = 738820.

The previous prime is 745873. The next prime is 745903. The reversal of 745897 is 798547.

745897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798547 = 73 ⋅10939.

It is a cyclic number.

It is not a de Polignac number, because 745897 - 2¹¹ = 743849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3379 + ... + 3592.

It is an arithmetic number, because the mean of its divisors is an integer number (188244).

2⁷⁴⁵⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

745897 is a deficient number, since it is larger than the sum of its proper divisors (7079).

745897 is a wasteful number, since it uses less digits than its factorization.

745897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7078.

The product of its digits is 70560, while the sum is 40.

The square root of 745897 is about 863.6532869155. The cubic root of 745897 is about 90.6900455738.

Subtracting 745897 from its reverse (798547), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 745897 in words is "seven hundred forty-five thousand, eight hundred ninety-seven".