65088819 has 8 divisors (see below), whose sum is σ = 96427920. Its totient is φ = 43392528.

The previous prime is 65088817. The next prime is 65088857. The reversal of 65088819 is 91888056.

It is not a de Polignac number, because 65088819 - 2¹ = 65088817 is a prime.

It is a super-2 number, since 2×65088819² = 8473108717629522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65088817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205322 + ... + 1205375.

It is an arithmetic number, because the mean of its divisors is an integer number (12053490).

Almost surely, 2^65088819 is an apocalyptic number.

65088819 is a deficient number, since it is larger than the sum of its proper divisors (31339101).

65088819 is a wasteful number, since it uses less digits than its factorization.

65088819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410706 (or 2410700 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 65088819 is about 8067.7641884230. The cubic root of 65088819 is about 402.2556293482.

The spelling of 65088819 in words is "sixty-five million, eighty-eight thousand, eight hundred nineteen".