65455470 has 96 divisors (see below), whose sum is σ = 179891712. Its totient is φ = 16479936.

The previous prime is 65455463. The next prime is 65455487. The reversal of 65455470 is 7455456.

It is a happy number.

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, 213057 + ... + 213363.

It is an arithmetic number, because the mean of its divisors is an integer number (1873872).

Almost surely, 2^65455470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65455470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89945856).

65455470 is an abundant number, since it is smaller than the sum of its proper divisors (114436242).

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

65455470 is a wasteful number, since it uses less digits than its factorization.

65455470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 65455470 is about 8090.4554877955. The cubic root of 65455470 is about 403.0095292137.

It can be divided in two parts, 65 and 455470, that added together give a triangular number (455535 = T₉₅₄).

The spelling of 65455470 in words is "sixty-five million, four hundred fifty-five thousand, four hundred seventy".