745847 has 4 divisors (see below), whose sum is σ = 758136. Its totient is φ = 733560.

The previous prime is 745837. The next prime is 745859. The reversal of 745847 is 748547.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 748547 = 37 ⋅20231.

It is a cyclic number.

It is not a de Polignac number, because 745847 - 2¹⁰ = 744823 is a prime.

It is a Duffinian number.

It is a congruent 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, 6053 + ... + 6174.

It is an arithmetic number, because the mean of its divisors is an integer number (189534).

2⁷⁴⁵⁸⁴⁷ is an apocalyptic number.

745847 is a deficient number, since it is larger than the sum of its proper divisors (12289).

745847 is a wasteful number, since it uses less digits than its factorization.

745847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12288.

The product of its digits is 31360, while the sum is 35.

The square root of 745847 is about 863.6243396292. The cubic root of 745847 is about 90.6880191084.

It can be divided in two parts, 7 and 45847, that added together give a palindrome (45854).

The spelling of 745847 in words is "seven hundred forty-five thousand, eight hundred forty-seven".