65653487 has 4 divisors (see below), whose sum is σ = 66578256. Its totient is φ = 64728720.

The previous prime is 65653463. The next prime is 65653513. The reversal of 65653487 is 78435656.

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 65653487 - 2¹⁰ = 65652463 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 (65653457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462278 + ... + 462419.

It is an arithmetic number, because the mean of its divisors is an integer number (16644564).

Almost surely, 2^65653487 is an apocalyptic number.

65653487 is a deficient number, since it is larger than the sum of its proper divisors (924769).

65653487 is an equidigital number, since it uses as much as digits as its factorization.

65653487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924768.

The product of its digits is 604800, while the sum is 44.

The square root of 65653487 is about 8102.6839380541. The cubic root of 65653487 is about 403.4155171797.

The spelling of 65653487 in words is "sixty-five million, six hundred fifty-three thousand, four hundred eighty-seven".