39860287 has 8 divisors (see below), whose sum is σ = 40475952. Its totient is φ = 39249600.

The previous prime is 39860273. The next prime is 39860329. The reversal of 39860287 is 78206893.

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

It is a cyclic number.

It is not a de Polignac number, because 39860287 - 2¹⁵ = 39827519 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 (39867287) 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, 16837 + ... + 19057.

It is an arithmetic number, because the mean of its divisors is an integer number (5059494).

Almost surely, 2^39860287 is an apocalyptic number.

39860287 is a deficient number, since it is larger than the sum of its proper divisors (615665).

39860287 is a wasteful number, since it uses less digits than its factorization.

39860287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 39860287 is about 6313.5003761780. The cubic root of 39860287 is about 341.5965483977.

The spelling of 39860287 in words is "thirty-nine million, eight hundred sixty thousand, two hundred eighty-seven".