4021377 has 4 divisors (see below), whose sum is σ = 5361840. Its totient is φ = 2680916.

The previous prime is 4021357. The next prime is 4021379. The reversal of 4021377 is 7731204.

4021377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4021377 - 2⁷ = 4021249 is a prime.

It is a super-2 number, since 2×4021377² = 32342945952258, which contains 22 as substring.

It is a D-number.

4021377 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4021379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670227 + ... + 670232.

It is an arithmetic number, because the mean of its divisors is an integer number (1340460).

Almost surely, 2^4021377 is an apocalyptic number.

It is an amenable number.

4021377 is a deficient number, since it is larger than the sum of its proper divisors (1340463).

4021377 is a wasteful number, since it uses less digits than its factorization.

4021377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340462.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 4021377 is about 2005.3371287641. The cubic root of 4021377 is about 159.0223852032.

The spelling of 4021377 in words is "four million, twenty-one thousand, three hundred seventy-seven".