1427457 has 8 divisors (see below), whose sum is σ = 1964800. Its totient is φ = 920880.

The previous prime is 1427453. The next prime is 1427479. The reversal of 1427457 is 7547241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1427457 - 2² = 1427453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1427453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7582 + ... + 7767.

It is an arithmetic number, because the mean of its divisors is an integer number (245600).

It is a Proth number, since it is equal to 697 ⋅ 2¹¹ + 1 and 697 < 2¹¹.

2^1427457 is an apocalyptic number.

It is an amenable number.

1427457 is a deficient number, since it is larger than the sum of its proper divisors (537343).

1427457 is a wasteful number, since it uses less digits than its factorization.

1427457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15383.

The product of its digits is 7840, while the sum is 30.

The square root of 1427457 is about 1194.7623194594. The cubic root of 1427457 is about 112.5954942266.

The spelling of 1427457 in words is "one million, four hundred twenty-seven thousand, four hundred fifty-seven".