65470000 has 50 divisors (see below), whose sum is σ = 158533628. Its totient is φ = 26184000.

The previous prime is 65469967. The next prime is 65470021. The reversal of 65470000 is 7456.

It is a tau number, because it is divible by the number of its divisors (50).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6727 + ... + 13273.

Almost surely, 2^65470000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65470000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79266814).

65470000 is an abundant number, since it is smaller than the sum of its proper divisors (93063628).

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

65470000 is an equidigital number, since it uses as much as digits as its factorization.

65470000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6575 (or 6554 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 65470000 is about 8091.3534096590. The cubic root of 65470000 is about 403.0393474256.

Adding to 65470000 its reverse (7456), we get a palindrome (65477456).

The spelling of 65470000 in words is "sixty-five million, four hundred seventy thousand".