3870787 has 4 divisors (see below), whose sum is σ = 3887920. Its totient is φ = 3853656.

The previous prime is 3870773. The next prime is 3870793. The reversal of 3870787 is 7870783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7870783 = 547 ⋅14389.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3870787 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

3870787 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3870767) 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, 8223 + ... + 8680.

It is an arithmetic number, because the mean of its divisors is an integer number (971980).

Almost surely, 2^3870787 is an apocalyptic number.

3870787 is a deficient number, since it is larger than the sum of its proper divisors (17133).

3870787 is a wasteful number, since it uses less digits than its factorization.

3870787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17132.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 3870787 is about 1967.4315744137. The cubic root of 3870787 is about 157.0120888091.

The spelling of 3870787 in words is "three million, eight hundred seventy thousand, seven hundred eighty-seven".