65330887 has 4 divisors (see below), whose sum is σ = 65413656. Its totient is φ = 65248120.

The previous prime is 65330869. The next prime is 65330891. The reversal of 65330887 is 78803356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65330887 - 2²³ = 56942279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65330897) 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 3 ways as a sum of consecutive naturals, for example, 40189 + ... + 41782.

It is an arithmetic number, because the mean of its divisors is an integer number (16353414).

Almost surely, 2^65330887 is an apocalyptic number.

65330887 is a deficient number, since it is larger than the sum of its proper divisors (82769).

65330887 is an equidigital number, since it uses as much as digits as its factorization.

65330887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82768.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 65330887 is about 8082.7524396087. The cubic root of 65330887 is about 402.7536808534.

The spelling of 65330887 in words is "sixty-five million, three hundred thirty thousand, eight hundred eighty-seven".