82438501 has 2 divisors, whose sum is σ = 82438502. Its totient is φ = 82438500.

The previous prime is 82438483. The next prime is 82438507. The reversal of 82438501 is 10583428.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80550625 + 1887876 = 8975^2 + 1374^2 .

It is a cyclic number.

It is not a de Polignac number, because 82438501 - 2⁹ = 82437989 is a prime.

It is a super-2 number, since 2×82438501² = 13592212894254002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82438507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41219250 + 41219251.

It is an arithmetic number, because the mean of its divisors is an integer number (41219251).

Almost surely, 2^82438501 is an apocalyptic number.

It is an amenable number.

82438501 is a deficient number, since it is larger than the sum of its proper divisors (1).

82438501 is an equidigital number, since it uses as much as digits as its factorization.

82438501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 82438501 is about 9079.5650226209. The cubic root of 82438501 is about 435.2211866719.

The spelling of 82438501 in words is "eighty-two million, four hundred thirty-eight thousand, five hundred one".