4689491 has 4 divisors (see below), whose sum is σ = 4816272. Its totient is φ = 4562712.

The previous prime is 4689481. The next prime is 4689547. The reversal of 4689491 is 1949864.

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 4689491 - 2⁶ = 4689427 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4689481) 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, 63335 + ... + 63408.

It is an arithmetic number, because the mean of its divisors is an integer number (1204068).

Almost surely, 2^4689491 is an apocalyptic number.

4689491 is a deficient number, since it is larger than the sum of its proper divisors (126781).

4689491 is a wasteful number, since it uses less digits than its factorization.

4689491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126780.

The product of its digits is 62208, while the sum is 41.

The square root of 4689491 is about 2165.5232624010. The cubic root of 4689491 is about 167.3819291177.

The spelling of 4689491 in words is "four million, six hundred eighty-nine thousand, four hundred ninety-one".