4077091 has 4 divisors (see below), whose sum is σ = 4100832. Its totient is φ = 4053352.

The previous prime is 4077079. The next prime is 4077097. The reversal of 4077091 is 1907704.

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

It is a cyclic number.

It is not a de Polignac number, because 4077091 - 2¹⁵ = 4044323 is a prime.

It is an Ulam number.

It is a Duffinian number.

4077091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4077097) 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, 11611 + ... + 11956.

It is an arithmetic number, because the mean of its divisors is an integer number (1025208).

Almost surely, 2^4077091 is an apocalyptic number.

4077091 is a deficient number, since it is larger than the sum of its proper divisors (23741).

4077091 is a wasteful number, since it uses less digits than its factorization.

4077091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23740.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 4077091 is about 2019.1807744727. The cubic root of 4077091 is about 159.7534092139.

The spelling of 4077091 in words is "four million, seventy-seven thousand, ninety-one".