4011983 has 8 divisors (see below), whose sum is σ = 4471920. Its totient is φ = 3576960.

The previous prime is 4011979. The next prime is 4011991. The reversal of 4011983 is 3891104.

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 4011983 - 2² = 4011979 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 (4011923) 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, 5888 + ... + 6533.

It is an arithmetic number, because the mean of its divisors is an integer number (558990).

Almost surely, 2^4011983 is an apocalyptic number.

4011983 is a deficient number, since it is larger than the sum of its proper divisors (459937).

4011983 is a wasteful number, since it uses less digits than its factorization.

4011983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12457.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 4011983 is about 2002.9935097249. The cubic root of 4011983 is about 158.8984623925.

Adding to 4011983 its sum of digits (26), we get a square (4012009 = 2003²).

It can be divided in two parts, 4011 and 983, that added together give a palindrome (4994).

The spelling of 4011983 in words is "four million, eleven thousand, nine hundred eighty-three".