39894863 has 4 divisors (see below), whose sum is σ = 40375608. Its totient is φ = 39414120.

The previous prime is 39894859. The next prime is 39894901. The reversal of 39894863 is 36849893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36849893 = 53 ⋅695281.

It is a cyclic number.

It is not a de Polignac number, because 39894863 - 2² = 39894859 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 (39897863) 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, 240248 + ... + 240413.

It is an arithmetic number, because the mean of its divisors is an integer number (10093902).

Almost surely, 2^39894863 is an apocalyptic number.

39894863 is a deficient number, since it is larger than the sum of its proper divisors (480745).

39894863 is an equidigital number, since it uses as much as digits as its factorization.

39894863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480744.

The product of its digits is 1119744, while the sum is 50.

The square root of 39894863 is about 6316.2380417461. The cubic root of 39894863 is about 341.6952901924.

The spelling of 39894863 in words is "thirty-nine million, eight hundred ninety-four thousand, eight hundred sixty-three".