653240479 has 2 divisors, whose sum is σ = 653240480. Its totient is φ = 653240478.

The previous prime is 653240459. The next prime is 653240491. The reversal of 653240479 is 974042356.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-653240479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653240429) 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, 326620239 + 326620240.

It is an arithmetic number, because the mean of its divisors is an integer number (326620240).

Almost surely, 2^653240479 is an apocalyptic number.

653240479 is a deficient number, since it is larger than the sum of its proper divisors (1).

653240479 is an equidigital number, since it uses as much as digits as its factorization.

653240479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 653240479 is about 25558.5695804754. The cubic root of 653240479 is about 867.6762221764.

The spelling of 653240479 in words is "six hundred fifty-three million, two hundred forty thousand, four hundred seventy-nine".