653023871 has 2 divisors, whose sum is σ = 653023872. Its totient is φ = 653023870.

The previous prime is 653023853. The next prime is 653023879. The reversal of 653023871 is 178320356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 653023871 - 2²² = 648829567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653023879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326511935 + 326511936.

It is an arithmetic number, because the mean of its divisors is an integer number (326511936).

Almost surely, 2^653023871 is an apocalyptic number.

653023871 is a deficient number, since it is larger than the sum of its proper divisors (1).

653023871 is an equidigital number, since it uses as much as digits as its factorization.

653023871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 653023871 is about 25554.3317463009. The cubic root of 653023871 is about 867.5803073260.

The spelling of 653023871 in words is "six hundred fifty-three million, twenty-three thousand, eight hundred seventy-one".