431049613 has 4 divisors (see below), whose sum is σ = 431805088. Its totient is φ = 430294140.

The previous prime is 431049589. The next prime is 431049629. The reversal of 431049613 is 316940134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431049613 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 (431049653) 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, 376881 + ... + 378022.

It is an arithmetic number, because the mean of its divisors is an integer number (107951272).

Almost surely, 2^431049613 is an apocalyptic number.

It is an amenable number.

431049613 is a deficient number, since it is larger than the sum of its proper divisors (755475).

431049613 is an equidigital number, since it uses as much as digits as its factorization.

431049613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755474.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 431049613 is about 20761.7343447025. The cubic root of 431049613 is about 755.3978652368.

Adding to 431049613 its reverse (316940134), we get a palindrome (747989747).

The spelling of 431049613 in words is "four hundred thirty-one million, forty-nine thousand, six hundred thirteen".