1429247 has 2 divisors, whose sum is σ = 1429248. Its totient is φ = 1429246.

The previous prime is 1429231. The next prime is 1429249. The reversal of 1429247 is 7429241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1429247 - 2⁴ = 1429231 is a prime.

Together with 1429249, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1429249) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714623 + 714624.

It is an arithmetic number, because the mean of its divisors is an integer number (714624).

2^1429247 is an apocalyptic number.

1429247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429247 is an equidigital number, since it uses as much as digits as its factorization.

1429247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 1429247 is about 1195.5111877352. The cubic root of 1429247 is about 112.6425386673.

The spelling of 1429247 in words is "one million, four hundred twenty-nine thousand, two hundred forty-seven".