65432916 has 18 divisors (see below), whose sum is σ = 165399962. Its totient is φ = 21810960.

The previous prime is 65432897. The next prime is 65432923. The reversal of 65432916 is 61923456.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64064016 + 1368900 = 8004^2 + 1170^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1817581 = 65432916 / (6 + 5 + 4 + 3 + 2 + 9 + 1 + 6).

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, 908755 + ... + 908826.

Almost surely, 2^65432916 is an apocalyptic number.

It is an amenable number.

65432916 is an abundant number, since it is smaller than the sum of its proper divisors (99967046).

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

65432916 is a wasteful number, since it uses less digits than its factorization.

65432916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817591 (or 1817586 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 65432916 is about 8089.0615030422. The cubic root of 65432916 is about 402.9632355472.

The spelling of 65432916 in words is "sixty-five million, four hundred thirty-two thousand, nine hundred sixteen".