4979091 has 8 divisors (see below), whose sum is σ = 7149520. Its totient is φ = 3064032.

The previous prime is 4979071. The next prime is 4979101. The reversal of 4979091 is 1909794.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4979091 - 2⁵ = 4979059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 127669 = 4979091 / (4 + 9 + 7 + 9 + 0 + 9 + 1).

It is a Duffinian number.

4979091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4979021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63796 + ... + 63873.

It is an arithmetic number, because the mean of its divisors is an integer number (893690).

Almost surely, 2^4979091 is an apocalyptic number.

4979091 is a deficient number, since it is larger than the sum of its proper divisors (2170429).

4979091 is a wasteful number, since it uses less digits than its factorization.

4979091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127685.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 4979091 is about 2231.3876848275. The cubic root of 4979091 is about 170.7589023896.

The spelling of 4979091 in words is "four million, nine hundred seventy-nine thousand, ninety-one".