82429643 has 8 divisors (see below), whose sum is σ = 83010048. Its totient is φ = 81851904.

The previous prime is 82429637. The next prime is 82429649. The reversal of 82429643 is 34692428.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82429637) and next prime (82429649).

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 82429643 - 2⁶ = 82429579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82429597 and 82429606.

It is not an unprimeable number, because it can be changed into a prime (82429649) 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, 142571 + ... + 143147.

It is an arithmetic number, because the mean of its divisors is an integer number (10376256).

Almost surely, 2^82429643 is an apocalyptic number.

82429643 is a deficient number, since it is larger than the sum of its proper divisors (580405).

82429643 is a wasteful number, since it uses less digits than its factorization.

82429643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333.

The product of its digits is 82944, while the sum is 38.

The square root of 82429643 is about 9079.0772108183. The cubic root of 82429643 is about 435.2055979712.

The spelling of 82429643 in words is "eighty-two million, four hundred twenty-nine thousand, six hundred forty-three".