65088390 has 32 divisors (see below), whose sum is σ = 163005696. Its totient is φ = 16602080.

The previous prime is 65088379. The next prime is 65088409. The reversal of 65088390 is 9388056.

65088390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46476 + ... + 47855.

It is an arithmetic number, because the mean of its divisors is an integer number (5093928).

Almost surely, 2^65088390 is an apocalyptic number.

65088390 is an abundant number, since it is smaller than the sum of its proper divisors (97917306).

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

65088390 is a wasteful number, since it uses less digits than its factorization.

65088390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94364.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 65088390 is about 8067.7376010874. The cubic root of 65088390 is about 402.2547455915.

The spelling of 65088390 in words is "sixty-five million, eighty-eight thousand, three hundred ninety".