39948321 has 8 divisors (see below), whose sum is σ = 60873664. Its totient is φ = 22827600.

The previous prime is 39948299. The next prime is 39948323. The reversal of 39948321 is 12384993.

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

It is not a de Polignac number, because 39948321 - 2⁵ = 39948289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39948321.

It is not an unprimeable number, because it can be changed into a prime (39948323) 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, 951130 + ... + 951171.

It is an arithmetic number, because the mean of its divisors is an integer number (7609208).

Almost surely, 2^39948321 is an apocalyptic number.

It is an amenable number.

39948321 is a deficient number, since it is larger than the sum of its proper divisors (20925343).

39948321 is a wasteful number, since it uses less digits than its factorization.

39948321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902311.

The product of its digits is 46656, while the sum is 39.

The square root of 39948321 is about 6320.4684161856. The cubic root of 39948321 is about 341.8478427828.

The spelling of 39948321 in words is "thirty-nine million, nine hundred forty-eight thousand, three hundred twenty-one".