4091577 has 32 divisors (see below), whose sum is σ = 6734592. Its totient is φ = 2156544.

The previous prime is 4091569. The next prime is 4091587. The reversal of 4091577 is 7751904.

It is not a de Polignac number, because 4091577 - 2³ = 4091569 is a prime.

4091577 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4091537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25983 + ... + 26139.

It is an arithmetic number, because the mean of its divisors is an integer number (210456).

Almost surely, 2^4091577 is an apocalyptic number.

It is an amenable number.

4091577 is a deficient number, since it is larger than the sum of its proper divisors (2643015).

4091577 is a wasteful number, since it uses less digits than its factorization.

4091577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 4091577 is about 2022.7646921973. The cubic root of 4091577 is about 159.9423881121.

The spelling of 4091577 in words is "four million, ninety-one thousand, five hundred seventy-seven".