642065035 has 8 divisors (see below), whose sum is σ = 788396400. Its totient is φ = 501706464.

The previous prime is 642064991. The next prime is 642065059. The reversal of 642065035 is 530560246.

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 642065035 - 2⁹ = 642064523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 642064988 and 642065006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1492960 + ... + 1493389.

It is an arithmetic number, because the mean of its divisors is an integer number (98549550).

Almost surely, 2^642065035 is an apocalyptic number.

642065035 is a deficient number, since it is larger than the sum of its proper divisors (146331365).

642065035 is a wasteful number, since it uses less digits than its factorization.

642065035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986397.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 642065035 is about 25339.0022494967. The cubic root of 642065035 is about 862.6997523761.

The spelling of 642065035 in words is "six hundred forty-two million, sixty-five thousand, thirty-five".