431413903 has 2 divisors, whose sum is σ = 431413904. Its totient is φ = 431413902.

The previous prime is 431413901. The next prime is 431413919. The reversal of 431413903 is 309314134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431413903 - 2¹ = 431413901 is a prime.

It is a super-2 number, since 2×431413903² = 372235911403386818, which contains 22 as substring.

Together with 431413901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431413901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215706951 + 215706952.

It is an arithmetic number, because the mean of its divisors is an integer number (215706952).

Almost surely, 2^431413903 is an apocalyptic number.

431413903 is a deficient number, since it is larger than the sum of its proper divisors (1).

431413903 is an equidigital number, since it uses as much as digits as its factorization.

431413903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 431413903 is about 20770.5056028976. The cubic root of 431413903 is about 755.6106067210.

The spelling of 431413903 in words is "four hundred thirty-one million, four hundred thirteen thousand, nine hundred three".