536646403 has 4 divisors (see below), whose sum is σ = 536994400. Its totient is φ = 536298408.

The previous prime is 536646323. The next prime is 536646413. The reversal of 536646403 is 304646635.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304646635 = 5 ⋅60929327.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-536646403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536646413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171675 + ... + 174772.

It is an arithmetic number, because the mean of its divisors is an integer number (134248600).

Almost surely, 2^536646403 is an apocalyptic number.

536646403 is a deficient number, since it is larger than the sum of its proper divisors (347997).

536646403 is a wasteful number, since it uses less digits than its factorization.

536646403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347996.

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 536646403 is about 23165.6297777548. The cubic root of 536646403 is about 812.6360308099.

The spelling of 536646403 in words is "five hundred thirty-six million, six hundred forty-six thousand, four hundred three".