4521607 has 2 divisors, whose sum is σ = 4521608. Its totient is φ = 4521606.

The previous prime is 4521599. The next prime is 4521611. The reversal of 4521607 is 7061254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4521607 - 2³ = 4521599 is a prime.

4521607 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4521617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260803 + 2260804.

It is an arithmetic number, because the mean of its divisors is an integer number (2260804).

Almost surely, 2^4521607 is an apocalyptic number.

4521607 is a deficient number, since it is larger than the sum of its proper divisors (1).

4521607 is an equidigital number, since it uses as much as digits as its factorization.

4521607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 4521607 is about 2126.4070635699. The cubic root of 4521607 is about 165.3601804340.

It can be divided in two parts, 45 and 21607, that multiplied together give a triangular number (972315 = T₁₃₉₄).

The spelling of 4521607 in words is "four million, five hundred twenty-one thousand, six hundred seven".