4077691 has 4 divisors (see below), whose sum is σ = 4087584. Its totient is φ = 4067800.

The previous prime is 4077677. The next prime is 4077701. The reversal of 4077691 is 1967704.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4077691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4077611) 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, 4300 + ... + 5161.

It is an arithmetic number, because the mean of its divisors is an integer number (1021896).

Almost surely, 2^4077691 is an apocalyptic number.

4077691 is a deficient number, since it is larger than the sum of its proper divisors (9893).

4077691 is an equidigital number, since it uses as much as digits as its factorization.

4077691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9892.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 4077691 is about 2019.3293441140. The cubic root of 4077691 is about 159.7612454664.

The spelling of 4077691 in words is "four million, seventy-seven thousand, six hundred ninety-one".