403413523 has 4 divisors (see below), whose sum is σ = 403600840. Its totient is φ = 403226208.

The previous prime is 403413443. The next prime is 403413533. The reversal of 403413523 is 325314304.

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

It is a cyclic number.

It is not a de Polignac number, because 403413523 - 2⁹ = 403413011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403413533) 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, 90390 + ... + 94747.

It is an arithmetic number, because the mean of its divisors is an integer number (100900210).

Almost surely, 2^403413523 is an apocalyptic number.

403413523 is a deficient number, since it is larger than the sum of its proper divisors (187317).

403413523 is a wasteful number, since it uses less digits than its factorization.

403413523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187316.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 403413523 is about 20085.1567830575. The cubic root of 403413523 is about 738.8962868144.

Adding to 403413523 its reverse (325314304), we get a palindrome (728727827).

The spelling of 403413523 in words is "four hundred three million, four hundred thirteen thousand, five hundred twenty-three".