4638541 has 2 divisors, whose sum is σ = 4638542. Its totient is φ = 4638540.

The previous prime is 4638533. The next prime is 4638547. The reversal of 4638541 is 1458364.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3316041 + 1322500 = 1821^2 + 1150^2 .

It is a cyclic number.

It is not a de Polignac number, because 4638541 - 2³ = 4638533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4638547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2319270 + 2319271.

It is an arithmetic number, because the mean of its divisors is an integer number (2319271).

Almost surely, 2^4638541 is an apocalyptic number.

It is an amenable number.

4638541 is a deficient number, since it is larger than the sum of its proper divisors (1).

4638541 is an equidigital number, since it uses as much as digits as its factorization.

4638541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 4638541 is about 2153.7272343544. The cubic root of 4638541 is about 166.7735345720.

The spelling of 4638541 in words is "four million, six hundred thirty-eight thousand, five hundred forty-one".