65432680 has 16 divisors (see below), whose sum is σ = 147223620. Its totient is φ = 26173056.

The previous prime is 65432659. The next prime is 65432681. The reversal of 65432680 is 8623456.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 65383396 + 49284 = 8086^2 + 222^2 .

It is a super-2 number, since 2×65432680² = 8562871223964800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65432681) 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, 817869 + ... + 817948.

Almost surely, 2^65432680 is an apocalyptic number.

It is an amenable number.

65432680 is an abundant number, since it is smaller than the sum of its proper divisors (81790940).

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

65432680 is a wasteful number, since it uses less digits than its factorization.

65432680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635828 (or 1635824 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 65432680 is about 8089.0469154283. The cubic root of 65432680 is about 402.9627510844.

The spelling of 65432680 in words is "sixty-five million, four hundred thirty-two thousand, six hundred eighty".