65436534 has 12 divisors (see below), whose sum is σ = 141779196. Its totient is φ = 21812172.

The previous prime is 65436439. The next prime is 65436563. The reversal of 65436534 is 43563456.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1817664 + ... + 1817699.

It is an arithmetic number, because the mean of its divisors is an integer number (11814933).

Almost surely, 2^65436534 is an apocalyptic number.

65436534 is an abundant number, since it is smaller than the sum of its proper divisors (76342662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65436534 is a wasteful number, since it uses less digits than its factorization.

65436534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635371 (or 3635368 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 65436534 is about 8089.2851352885. The cubic root of 65436534 is about 402.9706624622.

The spelling of 65436534 in words is "sixty-five million, four hundred thirty-six thousand, five hundred thirty-four".