32978653 has 2 divisors, whose sum is σ = 32978654. Its totient is φ = 32978652.

The previous prime is 32978609. The next prime is 32978669. The reversal of 32978653 is 35687923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29888089 + 3090564 = 5467^2 + 1758^2 .

It is an emirp because it is prime and its reverse (35687923) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32978653 - 2¹³ = 32970461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32978353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16489326 + 16489327.

It is an arithmetic number, because the mean of its divisors is an integer number (16489327).

Almost surely, 2^32978653 is an apocalyptic number.

It is an amenable number.

32978653 is a deficient number, since it is larger than the sum of its proper divisors (1).

32978653 is an equidigital number, since it uses as much as digits as its factorization.

32978653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 32978653 is about 5742.7043281019. The cubic root of 32978653 is about 320.6842552169.

The spelling of 32978653 in words is "thirty-two million, nine hundred seventy-eight thousand, six hundred fifty-three".