1442696987 has 2 divisors, whose sum is σ = 1442696988. Its totient is φ = 1442696986.

The previous prime is 1442696977. The next prime is 1442697049. The reversal of 1442696987 is 7896962441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1442696987 - 2¹² = 1442692891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1442696947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721348493 + 721348494.

It is an arithmetic number, because the mean of its divisors is an integer number (721348494).

Almost surely, 2^1442696987 is an apocalyptic number.

1442696987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442696987 is an equidigital number, since it uses as much as digits as its factorization.

1442696987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 56.

The square root of 1442696987 is about 37982.8512226241. The cubic root of 1442696987 is about 1129.9477844147.

The spelling of 1442696987 in words is "one billion, four hundred forty-two million, six hundred ninety-six thousand, nine hundred eighty-seven".