82642403 has 8 divisors (see below), whose sum is σ = 84974400. Its totient is φ = 80334400.

The previous prime is 82642393. The next prime is 82642411. The reversal of 82642403 is 30424628.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82642403 - 2⁴ = 82642387 is a prime.

It is a super-2 number, since 2×82642403² = 13659533547228818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82642103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1103 + ... + 12903.

It is an arithmetic number, because the mean of its divisors is an integer number (10621800).

Almost surely, 2^82642403 is an apocalyptic number.

82642403 is a deficient number, since it is larger than the sum of its proper divisors (2331997).

82642403 is a wasteful number, since it uses less digits than its factorization.

82642403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11997.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 82642403 is about 9090.7867096308. The cubic root of 82642403 is about 435.5797141600.

The spelling of 82642403 in words is "eighty-two million, six hundred forty-two thousand, four hundred three".