65473408 has 192 divisors, whose sum is σ = 180699120. Its totient is φ = 23224320.

The previous prime is 65473399. The next prime is 65473417. The reversal of 65473408 is 80437456.

It is an interprime number because it is at equal distance from previous prime (65473399) and next prime (65473417).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 896860 + ... + 896932.

Almost surely, 2^65473408 is an apocalyptic number.

65473408 is the 4672-nd octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65473408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90349560).

65473408 is an abundant number, since it is smaller than the sum of its proper divisors (115225712).

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

65473408 is a wasteful number, since it uses less digits than its factorization.

65473408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 65473408 is about 8091.5640020950. The cubic root of 65473408 is about 403.0463406249.

The spelling of 65473408 in words is "sixty-five million, four hundred seventy-three thousand, four hundred eight".