65470464 has 136 divisors (see below), whose sum is σ = 199227920. Its totient is φ = 21233664.

The previous prime is 65470453. The next prime is 65470469. The reversal of 65470464 is 46407456.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65470469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1769454 + ... + 1769490.

Almost surely, 2^65470464 is an apocalyptic number.

65470464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65470464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99613960).

65470464 is an abundant number, since it is smaller than the sum of its proper divisors (133757456).

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

65470464 is an frugal number, since it uses more digits than its factorization.

65470464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 65470464 is about 8091.3820821909. The cubic root of 65470464 is about 403.0402995656.

The spelling of 65470464 in words is "sixty-five million, four hundred seventy thousand, four hundred sixty-four".