52840969 has 4 divisors (see below), whose sum is σ = 53585280. Its totient is φ = 52096660.

The previous prime is 52840943. The next prime is 52840993. The reversal of 52840969 is 96904825.

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.

It is a cyclic number.

It is not a de Polignac number, because 52840969 - 2¹¹ = 52838921 is a prime.

It is a super-2 number, since 2×52840969² = 5584336009717922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52840939) 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, 372049 + ... + 372190.

It is an arithmetic number, because the mean of its divisors is an integer number (13396320).

Almost surely, 2^52840969 is an apocalyptic number.

It is an amenable number.

52840969 is a deficient number, since it is larger than the sum of its proper divisors (744311).

52840969 is an equidigital number, since it uses as much as digits as its factorization.

52840969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744310.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 52840969 is about 7269.1793897248. The cubic root of 52840969 is about 375.2524972082.

The spelling of 52840969 in words is "fifty-two million, eight hundred forty thousand, nine hundred sixty-nine".