4036991 has 8 divisors (see below), whose sum is σ = 4634784. Its totient is φ = 3444480.

The previous prime is 4036961. The next prime is 4036993. The reversal of 4036991 is 1996304.

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 4036991 - 2⁶ = 4036927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4036993) 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, 491 + ... + 2883.

It is an arithmetic number, because the mean of its divisors is an integer number (579348).

Almost surely, 2^4036991 is an apocalyptic number.

4036991 is a deficient number, since it is larger than the sum of its proper divisors (597793).

4036991 is a wasteful number, since it uses less digits than its factorization.

4036991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 4036991 is about 2009.2264680717. The cubic root of 4036991 is about 159.2279341023.

The spelling of 4036991 in words is "four million, thirty-six thousand, nine hundred ninety-one".