945493 has 4 divisors (see below), whose sum is σ = 947500. Its totient is φ = 943488.

The previous prime is 945481. The next prime is 945521. The reversal of 945493 is 394549.

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 485809 + 459684 = 697^2 + 678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-945493 is a prime.

It is a Duffinian number.

945493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945463) 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, 133 + ... + 1381.

It is an arithmetic number, because the mean of its divisors is an integer number (236875).

2⁹⁴⁵⁴⁹³ is an apocalyptic number.

It is an amenable number.

945493 is a deficient number, since it is larger than the sum of its proper divisors (2007).

945493 is a wasteful number, since it uses less digits than its factorization.

945493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006.

The product of its digits is 19440, while the sum is 34.

The square root of 945493 is about 972.3646435366. The cubic root of 945493 is about 98.1490512669.

The spelling of 945493 in words is "nine hundred forty-five thousand, four hundred ninety-three".