538626765 has 32 divisors (see below), whose sum is σ = 907739136. Its totient is φ = 272191040.

The previous prime is 538626749. The next prime is 538626769. The reversal of 538626765 is 567626835.

It is not a de Polignac number, because 538626765 - 2⁴ = 538626749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538626769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29620 + ... + 44210.

It is an arithmetic number, because the mean of its divisors is an integer number (28366848).

Almost surely, 2^538626765 is an apocalyptic number.

It is an amenable number.

538626765 is a deficient number, since it is larger than the sum of its proper divisors (369112371).

538626765 is a wasteful number, since it uses less digits than its factorization.

538626765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14729.

The product of its digits is 1814400, while the sum is 48.

The square root of 538626765 is about 23208.3339557151. Note that the first 3 decimals coincide. The cubic root of 538626765 is about 813.6344150734.

The spelling of 538626765 in words is "five hundred thirty-eight million, six hundred twenty-six thousand, seven hundred sixty-five".