4922991 has 8 divisors (see below), whose sum is σ = 7293360. Its totient is φ = 3281976.

The previous prime is 4922987. The next prime is 4923001. The reversal of 4922991 is 1992294.

It is not a de Polignac number, because 4922991 - 2² = 4922987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4922971) 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, 91140 + ... + 91193.

It is an arithmetic number, because the mean of its divisors is an integer number (911670).

Almost surely, 2^4922991 is an apocalyptic number.

4922991 is a deficient number, since it is larger than the sum of its proper divisors (2370369).

4922991 is a wasteful number, since it uses less digits than its factorization.

4922991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182342 (or 182336 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 4922991 is about 2218.7814223127. The cubic root of 4922991 is about 170.1151584213.

The spelling of 4922991 in words is "four million, nine hundred twenty-two thousand, nine hundred ninety-one".