4621913 has 2 divisors, whose sum is σ = 4621914. Its totient is φ = 4621912.

The previous prime is 4621891. The next prime is 4621931. The reversal of 4621913 is 3191264.

Together with next prime (4621931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4338889 + 283024 = 2083^2 + 532^2 .

It is a cyclic number.

It is not a de Polignac number, because 4621913 - 2²⁰ = 3573337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4621963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2310956 + 2310957.

It is an arithmetic number, because the mean of its divisors is an integer number (2310957).

Almost surely, 2^4621913 is an apocalyptic number.

It is an amenable number.

4621913 is a deficient number, since it is larger than the sum of its proper divisors (1).

4621913 is an equidigital number, since it uses as much as digits as its factorization.

4621913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 4621913 is about 2149.8634840380. The cubic root of 4621913 is about 166.5740156154.

The spelling of 4621913 in words is "four million, six hundred twenty-one thousand, nine hundred thirteen".