1427386903 has 4 divisors (see below), whose sum is σ = 1428904728. Its totient is φ = 1425869080.

The previous prime is 1427386889. The next prime is 1427386907. The reversal of 1427386903 is 3096837241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3096837241 = 347 ⋅8924603.

It is a cyclic number.

It is not a de Polignac number, because 1427386903 - 2⁵ = 1427386871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1427386903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427386907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757501 + ... + 759382.

It is an arithmetic number, because the mean of its divisors is an integer number (357226182).

Almost surely, 2^1427386903 is an apocalyptic number.

1427386903 is a deficient number, since it is larger than the sum of its proper divisors (1517825).

1427386903 is an equidigital number, since it uses as much as digits as its factorization.

1427386903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517824.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 1427386903 is about 37780.7742509335. The cubic root of 1427386903 is about 1125.9365115054.

The spelling of 1427386903 in words is "one billion, four hundred twenty-seven million, three hundred eighty-six thousand, nine hundred three".