4780091 has 4 divisors (see below), whose sum is σ = 4797384. Its totient is φ = 4762800.

The previous prime is 4780081. The next prime is 4780093. The reversal of 4780091 is 1900874.

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 4780091 - 2¹⁰ = 4779067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4780093) 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, 8225 + ... + 8786.

It is an arithmetic number, because the mean of its divisors is an integer number (1199346).

Almost surely, 2^4780091 is an apocalyptic number.

4780091 is a deficient number, since it is larger than the sum of its proper divisors (17293).

4780091 is a wasteful number, since it uses less digits than its factorization.

4780091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17292.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 4780091 is about 2186.3419220241. The cubic root of 4780091 is about 168.4529890250.

The spelling of 4780091 in words is "four million, seven hundred eighty thousand, ninety-one".