653623741 has 2 divisors, whose sum is σ = 653623742. Its totient is φ = 653623740.

The previous prime is 653623727. The next prime is 653623777. The reversal of 653623741 is 147326356.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 588256516 + 65367225 = 24254^2 + 8085^2 .

It is a cyclic number.

It is not a de Polignac number, because 653623741 - 2⁵ = 653623709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 653623741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653623781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326811870 + 326811871.

It is an arithmetic number, because the mean of its divisors is an integer number (326811871).

Almost surely, 2^653623741 is an apocalyptic number.

It is an amenable number.

653623741 is a deficient number, since it is larger than the sum of its proper divisors (1).

653623741 is an equidigital number, since it uses as much as digits as its factorization.

653623741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 37.

The square root of 653623741 is about 25566.0662011190. The cubic root of 653623741 is about 867.8458801202.

The spelling of 653623741 in words is "six hundred fifty-three million, six hundred twenty-three thousand, seven hundred forty-one".