65455398 has 32 divisors (see below), whose sum is σ = 145720800. Its totient is φ = 21778848.

The previous prime is 65455343. The next prime is 65455427. The reversal of 65455398 is 89355456.

65455398 is a `hidden beast` number, since 6 + 5 + 4 + 553 + 98 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58468 + ... + 59576.

It is an arithmetic number, because the mean of its divisors is an integer number (4553775).

Almost surely, 2^65455398 is an apocalyptic number.

65455398 is an abundant number, since it is smaller than the sum of its proper divisors (80265402).

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

65455398 is a wasteful number, since it uses less digits than its factorization.

65455398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213 (or 2207 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 65455398 is about 8090.4510381066. The cubic root of 65455398 is about 403.0093814456.

The spelling of 65455398 in words is "sixty-five million, four hundred fifty-five thousand, three hundred ninety-eight".