3797991 has 12 divisors (see below), whose sum is σ = 5503680. Its totient is φ = 2523840.

The previous prime is 3797957. The next prime is 3797993. The reversal of 3797991 is 1997973.

3797991 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 3797991 - 2⁷ = 3797863 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3797993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3871 + ... + 4751.

It is an arithmetic number, because the mean of its divisors is an integer number (458640).

Almost surely, 2^3797991 is an apocalyptic number.

3797991 is a deficient number, since it is larger than the sum of its proper divisors (1705689).

3797991 is a wasteful number, since it uses less digits than its factorization.

3797991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 1363 counting only the distinct ones).

The product of its digits is 107163, while the sum is 45.

The square root of 3797991 is about 1948.8435032090. The cubic root of 3797991 is about 156.0215699957.

The spelling of 3797991 in words is "three million, seven hundred ninety-seven thousand, nine hundred ninety-one".