1427920807 has 8 divisors (see below), whose sum is σ = 1448394896. Its totient is φ = 1407471552.

The previous prime is 1427920787. The next prime is 1427920843. The reversal of 1427920807 is 7080297241.

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

It is a cyclic number.

It is not a de Polignac number, because 1427920807 - 2⁷ = 1427920679 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 1427920807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427920867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131053 + ... + 141529.

It is an arithmetic number, because the mean of its divisors is an integer number (181049362).

Almost surely, 2^1427920807 is an apocalyptic number.

1427920807 is a deficient number, since it is larger than the sum of its proper divisors (20474089).

1427920807 is a wasteful number, since it uses less digits than its factorization.

1427920807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12417.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 1427920807 is about 37787.8394063487. The cubic root of 1427920807 is about 1126.0768768753.

The spelling of 1427920807 in words is "one billion, four hundred twenty-seven million, nine hundred twenty thousand, eight hundred seven".