65420635 has 24 divisors (see below), whose sum is σ = 91765440. Its totient is φ = 44642304.

The previous prime is 65420623. The next prime is 65420659. The reversal of 65420635 is 53602456.

It is not a de Polignac number, because 65420635 - 2⁷ = 65420507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65420597 and 65420606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62446 + ... + 63484.

It is an arithmetic number, because the mean of its divisors is an integer number (3823560).

Almost surely, 2^65420635 is an apocalyptic number.

65420635 is a deficient number, since it is larger than the sum of its proper divisors (26344805).

65420635 is a wasteful number, since it uses less digits than its factorization.

65420635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315 (or 1308 counting only the distinct ones).

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

The square root of 65420635 is about 8088.3023558717. The cubic root of 65420635 is about 402.9380234600.

The spelling of 65420635 in words is "sixty-five million, four hundred twenty thousand, six hundred thirty-five".