65232489 has 16 divisors (see below), whose sum is σ = 99527040. Its totient is φ = 37228800.

The previous prime is 65232379. The next prime is 65232493. The reversal of 65232489 is 98423256.

It is a happy number.

It is not a de Polignac number, because 65232489 - 2⁷ = 65232361 is a prime.

It is a super-2 number, since 2×65232489² = 8510555242270242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65232499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21889 + ... + 24689.

It is an arithmetic number, because the mean of its divisors is an integer number (6220440).

Almost surely, 2^65232489 is an apocalyptic number.

It is an amenable number.

65232489 is a deficient number, since it is larger than the sum of its proper divisors (34294551).

65232489 is a wasteful number, since it uses less digits than its factorization.

65232489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3920.

The product of its digits is 103680, while the sum is 39.

The square root of 65232489 is about 8076.6632342818. The cubic root of 65232489 is about 402.5513770046.

The spelling of 65232489 in words is "sixty-five million, two hundred thirty-two thousand, four hundred eighty-nine".