4091497 has 4 divisors (see below), whose sum is σ = 4202116. Its totient is φ = 3980880.

The previous prime is 4091471. The next prime is 4091537. The reversal of 4091497 is 7941904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3759721 + 331776 = 1939^2 + 576^2 .

It is a cyclic number.

It is not a de Polignac number, because 4091497 - 2⁷ = 4091369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4091797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55254 + ... + 55327.

It is an arithmetic number, because the mean of its divisors is an integer number (1050529).

Almost surely, 2^4091497 is an apocalyptic number.

It is an amenable number.

4091497 is a deficient number, since it is larger than the sum of its proper divisors (110619).

4091497 is a wasteful number, since it uses less digits than its factorization.

4091497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110618.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 4091497 is about 2022.7449171856. The cubic root of 4091497 is about 159.9413456881.

The spelling of 4091497 in words is "four million, ninety-one thousand, four hundred ninety-seven".