65470880 has 48 divisors (see below), whose sum is σ = 161409024. Its totient is φ = 25048320.

The previous prime is 65470879. The next prime is 65470883. The reversal of 65470880 is 8807456.

It is a super-2 number, since 2×65470880² = 8572872255948800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65470883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5216 + ... + 12575.

It is an arithmetic number, because the mean of its divisors is an integer number (3362688).

Almost surely, 2^65470880 is an apocalyptic number.

It is an amenable number.

65470880 is an abundant number, since it is smaller than the sum of its proper divisors (95938144).

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

65470880 is a wasteful number, since it uses less digits than its factorization.

65470880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17829 (or 17821 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 65470880 is about 8091.4077885125. The cubic root of 65470880 is about 403.0411532045.

The spelling of 65470880 in words is "sixty-five million, four hundred seventy thousand, eight hundred eighty".