4645891 has 2 divisors, whose sum is σ = 4645892. Its totient is φ = 4645890.

The previous prime is 4645873. The next prime is 4645909. The reversal of 4645891 is 1985464.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (4645873) and next prime (4645909).

It is a cyclic number.

It is not a de Polignac number, because 4645891 - 2¹¹ = 4643843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4645891.

It is not a weakly prime, because it can be changed into another prime (4645801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322945 + 2322946.

It is an arithmetic number, because the mean of its divisors is an integer number (2322946).

Almost surely, 2^4645891 is an apocalyptic number.

4645891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4645891 is an equidigital number, since it uses as much as digits as its factorization.

4645891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 4645891 is about 2155.4329031543. The cubic root of 4645891 is about 166.8615750865.

The spelling of 4645891 in words is "four million, six hundred forty-five thousand, eight hundred ninety-one".