65408970 has 96 divisors (see below), whose sum is σ = 177577344. Its totient is φ = 15396480.

The previous prime is 65408969. The next prime is 65408983. The reversal of 65408970 is 7980456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134067 + ... + 134553.

It is an arithmetic number, because the mean of its divisors is an integer number (1849764).

Almost surely, 2^65408970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65408970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88788672).

65408970 is an abundant number, since it is smaller than the sum of its proper divisors (112168374).

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

65408970 is a wasteful number, since it uses less digits than its factorization.

65408970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 65408970 is about 8087.5812206123. The cubic root of 65408970 is about 402.9140730585.

The spelling of 65408970 in words is "sixty-five million, four hundred eight thousand, nine hundred seventy".