32650813 has 4 divisors (see below), whose sum is σ = 35162428. Its totient is φ = 30139200.

The previous prime is 32650769. The next prime is 32650859. The reversal of 32650813 is 31805623.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31805623 = 17 ⋅1870919.

It can be written as a sum of positive squares in 2 ways, for example, as 19123129 + 13527684 = 4373^2 + 3678^2 .

It is not a de Polignac number, because 32650813 - 2¹⁷ = 32519741 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 (32650213) 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, 1255788 + ... + 1255813.

It is an arithmetic number, because the mean of its divisors is an integer number (8790607).

Almost surely, 2^32650813 is an apocalyptic number.

It is an amenable number.

32650813 is a deficient number, since it is larger than the sum of its proper divisors (2511615).

32650813 is a wasteful number, since it uses less digits than its factorization.

32650813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511614.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 32650813 is about 5714.0889912566. The cubic root of 32650813 is about 319.6180762519.

The spelling of 32650813 in words is "thirty-two million, six hundred fifty thousand, eight hundred thirteen".