65421465 has 16 divisors (see below), whose sum is σ = 110184000. Its totient is φ = 33054912.

The previous prime is 65421443. The next prime is 65421467. The reversal of 65421465 is 56412456.

It is not a de Polignac number, because 65421465 - 2¹⁶ = 65355929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65421467) 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, 114490 + ... + 115059.

It is an arithmetic number, because the mean of its divisors is an integer number (6886500).

Almost surely, 2^65421465 is an apocalyptic number.

It is an amenable number.

65421465 is a deficient number, since it is larger than the sum of its proper divisors (44762535).

65421465 is a wasteful number, since it uses less digits than its factorization.

65421465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229576.

The product of its digits is 28800, while the sum is 33.

The square root of 65421465 is about 8088.3536643745. The cubic root of 65421465 is about 402.9397274950.

Subtracting from 65421465 its reverse (56412456), we obtain a palindrome (9009009).

The spelling of 65421465 in words is "sixty-five million, four hundred twenty-one thousand, four hundred sixty-five".