39902 has 8 divisors (see below), whose sum is σ = 60912. Its totient is φ = 19600.

The previous prime is 39901. The next prime is 39929. The reversal of 39902 is 20993.

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

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2 + ... + 282.

It is an arithmetic number, because the mean of its divisors is an integer number (7614).

2³⁹⁹⁰² is an apocalyptic number.

39902 is a deficient number, since it is larger than the sum of its proper divisors (21010).

39902 is a wasteful number, since it uses less digits than its factorization.

39902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 39902 is about 199.7548497534. The cubic root of 39902 is about 34.1715664861.

The spelling of 39902 in words is "thirty-nine thousand, nine hundred two".