635372047 has 2 divisors, whose sum is σ = 635372048. Its totient is φ = 635372046.

The previous prime is 635372021. The next prime is 635372081. The reversal of 635372047 is 740273536.

635372047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-635372047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 635371997 and 635372015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (635372347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317686023 + 317686024.

It is an arithmetic number, because the mean of its divisors is an integer number (317686024).

Almost surely, 2^635372047 is an apocalyptic number.

635372047 is a deficient number, since it is larger than the sum of its proper divisors (1).

635372047 is an equidigital number, since it uses as much as digits as its factorization.

635372047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 37.

The square root of 635372047 is about 25206.5873731451. The cubic root of 635372047 is about 859.6916358848.

It can be divided in two parts, 6353 and 72047, that added together give a square (78400 = 280²).

The spelling of 635372047 in words is "six hundred thirty-five million, three hundred seventy-two thousand, forty-seven".