65465998 has 16 divisors (see below), whose sum is σ = 106530480. Its totient is φ = 29992896.

The previous prime is 65465989. The next prime is 65465999. The reversal of 65465998 is 89956456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65465999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5628 + ... + 12751.

It is an arithmetic number, because the mean of its divisors is an integer number (6658155).

Almost surely, 2^65465998 is an apocalyptic number.

65465998 is a deficient number, since it is larger than the sum of its proper divisors (41064482).

65465998 is a wasteful number, since it uses less digits than its factorization.

65465998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18531.

The product of its digits is 2332800, while the sum is 52.

The square root of 65465998 is about 8091.1061048536. The cubic root of 65465998 is about 403.0311350315.

It can be divided in two parts, 6546 and 5998, that added together give a square (12544 = 112²).

The spelling of 65465998 in words is "sixty-five million, four hundred sixty-five thousand, nine hundred ninety-eight".