642336083 has 8 divisors (see below), whose sum is σ = 645500160. Its totient is φ = 639180360.

The previous prime is 642336073. The next prime is 642336091. The reversal of 642336083 is 380633246.

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 642336083 - 2²⁴ = 625558867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (642336043) 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 7 ways as a sum of consecutive naturals, for example, 194738 + ... + 198008.

It is an arithmetic number, because the mean of its divisors is an integer number (80687520).

Almost surely, 2^642336083 is an apocalyptic number.

642336083 is a deficient number, since it is larger than the sum of its proper divisors (3164077).

642336083 is a wasteful number, since it uses less digits than its factorization.

642336083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 642336083 is about 25344.3501198985. The cubic root of 642336083 is about 862.8211316411.

The spelling of 642336083 in words is "six hundred forty-two million, three hundred thirty-six thousand, eighty-three".