736423 has 4 divisors (see below), whose sum is σ = 779760. Its totient is φ = 693088.

The previous prime is 736409. The next prime is 736429. The reversal of 736423 is 324637.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-736423 is a prime.

It is a Duffinian number.

736423 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (736429) 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, 21643 + ... + 21676.

It is an arithmetic number, because the mean of its divisors is an integer number (194940).

2⁷³⁶⁴²³ is an apocalyptic number.

736423 is a deficient number, since it is larger than the sum of its proper divisors (43337).

736423 is a wasteful number, since it uses less digits than its factorization.

736423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43336.

The product of its digits is 3024, while the sum is 25.

The square root of 736423 is about 858.1509191279. The cubic root of 736423 is about 90.3044422555.

The spelling of 736423 in words is "seven hundred thirty-six thousand, four hundred twenty-three".