4642891 has 6 divisors (see below), whose sum is σ = 5103476. Its totient is φ = 4220700.

The previous prime is 4642889. The next prime is 4642907. The reversal of 4642891 is 1982464.

It is not a de Polignac number, because 4642891 - 2¹ = 4642889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4642811) 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 5 ways as a sum of consecutive naturals, for example, 19065 + ... + 19306.

Almost surely, 2^4642891 is an apocalyptic number.

4642891 is a deficient number, since it is larger than the sum of its proper divisors (460585).

4642891 is a wasteful number, since it uses less digits than its factorization.

4642891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38393 (or 38382 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 4642891 is about 2154.7368748875. The cubic root of 4642891 is about 166.8256514060.

The spelling of 4642891 in words is "four million, six hundred forty-two thousand, eight hundred ninety-one".