3998973 has 8 divisors (see below), whose sum is σ = 5816736. Its totient is φ = 2423600.

The previous prime is 3998971. The next prime is 3998983. The reversal of 3998973 is 3798993.

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 3998973 - 2¹ = 3998971 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60558 + ... + 60623.

It is an arithmetic number, because the mean of its divisors is an integer number (727092).

Almost surely, 2^3998973 is an apocalyptic number.

3998973 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3998973 is a deficient number, since it is larger than the sum of its proper divisors (1817763).

3998973 is a wasteful number, since it uses less digits than its factorization.

3998973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121195.

The product of its digits is 367416, while the sum is 48.

The square root of 3998973 is about 1999.7432335177. The cubic root of 3998973 is about 158.7265185266.

The spelling of 3998973 in words is "three million, nine hundred ninety-eight thousand, nine hundred seventy-three".