1427431 has 2 divisors, whose sum is σ = 1427432. Its totient is φ = 1427430.

The previous prime is 1427411. The next prime is 1427453. The reversal of 1427431 is 1347241.

It is an a-pointer prime, because the next prime (1427453) can be obtained adding 1427431 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1427431 - 2⁵ = 1427399 is a prime.

It is a super-2 number, since 2×1427431² = 4075118519522, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1427401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713715 + 713716.

It is an arithmetic number, because the mean of its divisors is an integer number (713716).

2^1427431 is an apocalyptic number.

1427431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427431 is an equidigital number, since it uses as much as digits as its factorization.

1427431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 22.

The square root of 1427431 is about 1194.7514385846. The cubic root of 1427431 is about 112.5948106099.

The spelling of 1427431 in words is "one million, four hundred twenty-seven thousand, four hundred thirty-one".