1427269857 has 16 divisors (see below), whose sum is σ = 2104804800. Its totient is φ = 854580672.

The previous prime is 1427269843. The next prime is 1427269859. The reversal of 1427269857 is 7589627241.

It is a happy number.

It is not a de Polignac number, because 1427269857 - 2¹⁶ = 1427204321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1427269859) 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 15 ways as a sum of consecutive naturals, for example, 493107 + ... + 495992.

It is an arithmetic number, because the mean of its divisors is an integer number (131550300).

Almost surely, 2^1427269857 is an apocalyptic number.

It is an amenable number.

1427269857 is a deficient number, since it is larger than the sum of its proper divisors (677534943).

1427269857 is a wasteful number, since it uses less digits than its factorization.

1427269857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989152.

The product of its digits is 1693440, while the sum is 51.

The square root of 1427269857 is about 37779.2252038074. The cubic root of 1427269857 is about 1125.9057349941.

The spelling of 1427269857 in words is "one billion, four hundred twenty-seven million, two hundred sixty-nine thousand, eight hundred fifty-seven".