653085893 has 2 divisors, whose sum is σ = 653085894. Its totient is φ = 653085892.

The previous prime is 653085877. The next prime is 653085907. The reversal of 653085893 is 398580356.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608756929 + 44328964 = 24673^2 + 6658^2 .

It is a cyclic number.

It is not a de Polignac number, because 653085893 - 2⁴ = 653085877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653085593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326542946 + 326542947.

It is an arithmetic number, because the mean of its divisors is an integer number (326542947).

Almost surely, 2^653085893 is an apocalyptic number.

It is an amenable number.

653085893 is a deficient number, since it is larger than the sum of its proper divisors (1).

653085893 is an equidigital number, since it uses as much as digits as its factorization.

653085893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 653085893 is about 25555.5452495148. The cubic root of 653085893 is about 867.6077730715.

The spelling of 653085893 in words is "six hundred fifty-three million, eighty-five thousand, eight hundred ninety-three".