34872569 has 4 divisors (see below), whose sum is σ = 35530596. Its totient is φ = 34214544.

The previous prime is 34872557. The next prime is 34872571. The reversal of 34872569 is 96527843.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96527843 = 181 ⋅533303.

It can be written as a sum of positive squares in 2 ways, for example, as 30085225 + 4787344 = 5485^2 + 2188^2 .

It is a cyclic number.

It is not a de Polignac number, because 34872569 - 2⁴ = 34872553 is a prime.

It is a super-2 number, since 2×34872569² = 2432192137319522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34872769) 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, 328934 + ... + 329039.

It is an arithmetic number, because the mean of its divisors is an integer number (8882649).

Almost surely, 2^34872569 is an apocalyptic number.

It is an amenable number.

34872569 is a deficient number, since it is larger than the sum of its proper divisors (658027).

34872569 is an equidigital number, since it uses as much as digits as its factorization.

34872569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658026.

The product of its digits is 362880, while the sum is 44.

The square root of 34872569 is about 5905.3000770494. The cubic root of 34872569 is about 326.7091622952.

The spelling of 34872569 in words is "thirty-four million, eight hundred seventy-two thousand, five hundred sixty-nine".