3962890987 has 4 divisors (see below), whose sum is σ = 4323153816. Its totient is φ = 3602628160.

The previous prime is 3962890949. The next prime is 3962890993. The reversal of 3962890987 is 7890982693.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3962890987 - 2¹¹ = 3962888939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3962890187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180131398 + ... + 180131419.

It is an arithmetic number, because the mean of its divisors is an integer number (1080788454).

Almost surely, 2^3962890987 is an apocalyptic number.

3962890987 is a deficient number, since it is larger than the sum of its proper divisors (360262829).

3962890987 is a wasteful number, since it uses less digits than its factorization.

3962890987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360262828.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The square root of 3962890987 is about 62951.4970989571. The cubic root of 3962890987 is about 1582.4768856596.

The spelling of 3962890987 in words is "three billion, nine hundred sixty-two million, eight hundred ninety thousand, nine hundred eighty-seven".