652802489 has 4 divisors (see below), whose sum is σ = 652865280. Its totient is φ = 652739700.

The previous prime is 652802483. The next prime is 652802539. The reversal of 652802489 is 984208256.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 652802489 - 2⁴ = 652802473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652802483) 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, 11669 + ... + 37970.

It is an arithmetic number, because the mean of its divisors is an integer number (163216320).

Almost surely, 2^652802489 is an apocalyptic number.

It is an amenable number.

652802489 is a deficient number, since it is larger than the sum of its proper divisors (62791).

652802489 is a wasteful number, since it uses less digits than its factorization.

652802489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62790.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 652802489 is about 25549.9997847358. Note that the first 3 decimals coincide. The cubic root of 652802489 is about 867.4822566112.

The spelling of 652802489 in words is "six hundred fifty-two million, eight hundred two thousand, four hundred eighty-nine".