4395656987 has 4 divisors (see below), whose sum is σ = 4398435360. Its totient is φ = 4392878616.

The previous prime is 4395656981. The next prime is 4395657043. The reversal of 4395656987 is 7896565934.

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 4395656987 - 2¹⁴ = 4395640603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4395656981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1386812 + ... + 1389977.

It is an arithmetic number, because the mean of its divisors is an integer number (1099608840).

Almost surely, 2^4395656987 is an apocalyptic number.

4395656987 is a deficient number, since it is larger than the sum of its proper divisors (2778373).

4395656987 is a wasteful number, since it uses less digits than its factorization.

4395656987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778372.

The product of its digits is 48988800, while the sum is 62.

The square root of 4395656987 is about 66299.7510327150. The cubic root of 4395656987 is about 1638.1032238805.

The spelling of 4395656987 in words is "four billion, three hundred ninety-five million, six hundred fifty-six thousand, nine hundred eighty-seven".