32780669 has 2 divisors, whose sum is σ = 32780670. Its totient is φ = 32780668.

The previous prime is 32780651. The next prime is 32780707. The reversal of 32780669 is 96608723.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30415225 + 2365444 = 5515^2 + 1538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32780669 is a prime.

It is a super-2 number, since 2×32780669² = 2149144520175122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32782669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16390334 + 16390335.

It is an arithmetic number, because the mean of its divisors is an integer number (16390335).

Almost surely, 2^32780669 is an apocalyptic number.

It is an amenable number.

32780669 is a deficient number, since it is larger than the sum of its proper divisors (1).

32780669 is an equidigital number, since it uses as much as digits as its factorization.

32780669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 32780669 is about 5725.4405070702. The cubic root of 32780669 is about 320.0412349207.

The spelling of 32780669 in words is "thirty-two million, seven hundred eighty thousand, six hundred sixty-nine".