538635707 has 2 divisors, whose sum is σ = 538635708. Its totient is φ = 538635706.

The previous prime is 538635679. The next prime is 538635791. The reversal of 538635707 is 707536835.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538635707 is a prime.

It is not a weakly prime, because it can be changed into another prime (538635907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269317853 + 269317854.

It is an arithmetic number, because the mean of its divisors is an integer number (269317854).

Almost surely, 2^538635707 is an apocalyptic number.

538635707 is a deficient number, since it is larger than the sum of its proper divisors (1).

538635707 is an equidigital number, since it uses as much as digits as its factorization.

538635707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 44.

The square root of 538635707 is about 23208.5266012300. The cubic root of 538635707 is about 813.6389175595.

The spelling of 538635707 in words is "five hundred thirty-eight million, six hundred thirty-five thousand, seven hundred seven".