4081577 has 4 divisors (see below), whose sum is σ = 4139136. Its totient is φ = 4024020.

The previous prime is 4081549. The next prime is 4081579. The reversal of 4081577 is 7751804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4081577 - 2¹² = 4077481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4081579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28673 + ... + 28814.

It is an arithmetic number, because the mean of its divisors is an integer number (1034784).

Almost surely, 2^4081577 is an apocalyptic number.

It is an amenable number.

4081577 is a deficient number, since it is larger than the sum of its proper divisors (57559).

4081577 is an equidigital number, since it uses as much as digits as its factorization.

4081577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57558.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 4081577 is about 2020.2913156275. The cubic root of 4081577 is about 159.8119796596.

The spelling of 4081577 in words is "four million, eighty-one thousand, five hundred seventy-seven".