1421892947 has 2 divisors, whose sum is σ = 1421892948. Its totient is φ = 1421892946.

The previous prime is 1421892929. The next prime is 1421892973. The reversal of 1421892947 is 7492981241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421892947 - 2⁶ = 1421892883 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421892917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710946473 + 710946474.

It is an arithmetic number, because the mean of its divisors is an integer number (710946474).

Almost surely, 2^1421892947 is an apocalyptic number.

1421892947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421892947 is an equidigital number, since it uses as much as digits as its factorization.

1421892947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 1421892947 is about 37707.9957966477. The cubic root of 1421892947 is about 1124.4900924084.

The spelling of 1421892947 in words is "one billion, four hundred twenty-one million, eight hundred ninety-two thousand, nine hundred forty-seven".