4077891 has 16 divisors (see below), whose sum is σ = 6112800. Its totient is φ = 2686464.

The previous prime is 4077883. The next prime is 4077917. The reversal of 4077891 is 1987704.

It is not a de Polignac number, because 4077891 - 2³ = 4077883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4075891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555 + ... + 3251.

It is an arithmetic number, because the mean of its divisors is an integer number (382050).

Almost surely, 2^4077891 is an apocalyptic number.

4077891 is a deficient number, since it is larger than the sum of its proper divisors (2034909).

4077891 is a wasteful number, since it uses less digits than its factorization.

4077891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1789 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 4077891 is about 2019.3788648988. The cubic root of 4077891 is about 159.7638573798.

The spelling of 4077891 in words is "four million, seventy-seven thousand, eight hundred ninety-one".