1402985887 has 8 divisors (see below), whose sum is σ = 1411259216. Its totient is φ = 1394736192.

The previous prime is 1402985863. The next prime is 1402985893. The reversal of 1402985887 is 7885892041.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402985887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402985807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121048 + ... + 132130.

It is an arithmetic number, because the mean of its divisors is an integer number (176407402).

Almost surely, 2^1402985887 is an apocalyptic number.

1402985887 is a deficient number, since it is larger than the sum of its proper divisors (8273329).

1402985887 is a wasteful number, since it uses less digits than its factorization.

1402985887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11817.

The product of its (nonzero) digits is 1290240, while the sum is 52.

The square root of 1402985887 is about 37456.4532090266. The cubic root of 1402985887 is about 1119.4836818170.

The spelling of 1402985887 in words is "one billion, four hundred two million, nine hundred eighty-five thousand, eight hundred eighty-seven".