4572991 has 2 divisors, whose sum is σ = 4572992. Its totient is φ = 4572990.

The previous prime is 4572989. The next prime is 4573001. The reversal of 4572991 is 1992754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4572991 - 2¹ = 4572989 is a prime.

Together with 4572989, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4572991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4572391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2286495 + 2286496.

It is an arithmetic number, because the mean of its divisors is an integer number (2286496).

Almost surely, 2^4572991 is an apocalyptic number.

4572991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4572991 is an equidigital number, since it uses as much as digits as its factorization.

4572991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 4572991 is about 2138.4552836101. The cubic root of 4572991 is about 165.9842124629.

The spelling of 4572991 in words is "four million, five hundred seventy-two thousand, nine hundred ninety-one".