65964436 has 12 divisors (see below), whose sum is σ = 117616212. Its totient is φ = 32359808.

The previous prime is 65964433. The next prime is 65964439. The reversal of 65964436 is 63446956.

It is an interprime number because it is at equal distance from previous prime (65964433) and next prime (65964439).

It can be written as a sum of positive squares in 2 ways, for example, as 32832900 + 33131536 = 5730^2 + 5756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65964392 and 65964401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65964433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155365 + ... + 155788.

It is an arithmetic number, because the mean of its divisors is an integer number (9801351).

Almost surely, 2^65964436 is an apocalyptic number.

It is an amenable number.

65964436 is a deficient number, since it is larger than the sum of its proper divisors (51651776).

65964436 is a wasteful number, since it uses less digits than its factorization.

65964436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311210 (or 311208 counting only the distinct ones).

The product of its digits is 466560, while the sum is 43.

The square root of 65964436 is about 8121.8492968043. The cubic root of 65964436 is about 404.0514018184.

The spelling of 65964436 in words is "sixty-five million, nine hundred sixty-four thousand, four hundred thirty-six".