65509934 has 32 divisors (see below), whose sum is σ = 117711360. Its totient is φ = 26734752.

The previous prime is 65509933. The next prime is 65509979. The reversal of 65509934 is 43990556.

It is a junction number, because it is equal to n+sod(n) for n = 65509891 and 65509900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65509931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124997 + ... + 125519.

It is an arithmetic number, because the mean of its divisors is an integer number (3678480).

Almost surely, 2^65509934 is an apocalyptic number.

65509934 is a deficient number, since it is larger than the sum of its proper divisors (52201426).

65509934 is a wasteful number, since it uses less digits than its factorization.

65509934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 65509934 is about 8093.8207294207. The cubic root of 65509934 is about 403.1212765636.

The spelling of 65509934 in words is "sixty-five million, five hundred nine thousand, nine hundred thirty-four".