82428501 has 4 divisors (see below), whose sum is σ = 109904672. Its totient is φ = 54952332.

The previous prime is 82428457. The next prime is 82428503. The reversal of 82428501 is 10582428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 82428501 - 2¹¹ = 82426453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82428503) 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 in 3 ways as a sum of consecutive naturals, for example, 13738081 + ... + 13738086.

It is an arithmetic number, because the mean of its divisors is an integer number (27476168).

Almost surely, 2^82428501 is an apocalyptic number.

It is an amenable number.

82428501 is a deficient number, since it is larger than the sum of its proper divisors (27476171).

82428501 is a wasteful number, since it uses less digits than its factorization.

82428501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27476170.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 82428501 is about 9079.0143187463. The cubic root of 82428501 is about 435.2035881477.

The spelling of 82428501 in words is "eighty-two million, four hundred twenty-eight thousand, five hundred one".