65913408 has 168 divisors, whose sum is σ = 210165696. Its totient is φ = 19584000.

The previous prime is 65913401. The next prime is 65913427. The reversal of 65913408 is 80431956.

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

It is not an unprimeable number, because it can be changed into a prime (65913401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 639885 + ... + 639987.

Almost surely, 2^65913408 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 65913408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105082848).

65913408 is an abundant number, since it is smaller than the sum of its proper divisors (144252288).

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

65913408 is a wasteful number, since it uses less digits than its factorization.

65913408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 65913408 is about 8118.7072862618. The cubic root of 65913408 is about 403.9471878160.

It can be divided in two parts, 6591 and 3408, that added together give a palindrome (9999).

The spelling of 65913408 in words is "sixty-five million, nine hundred thirteen thousand, four hundred eight".