538332749 has 2 divisors, whose sum is σ = 538332750. Its totient is φ = 538332748.

The previous prime is 538332731. The next prime is 538332793. The reversal of 538332749 is 947233835.

It is an a-pointer prime, because the next prime (538332793) can be obtained adding 538332749 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383454724 + 154878025 = 19582^2 + 12445^2 .

It is a cyclic number.

It is not a de Polignac number, because 538332749 - 2⁸ = 538332493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538332449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269166374 + 269166375.

It is an arithmetic number, because the mean of its divisors is an integer number (269166375).

Almost surely, 2^538332749 is an apocalyptic number.

It is an amenable number.

538332749 is a deficient number, since it is larger than the sum of its proper divisors (1).

538332749 is an equidigital number, since it uses as much as digits as its factorization.

538332749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 44.

The square root of 538332749 is about 23201.9988147573. The cubic root of 538332749 is about 813.4863440328.

The spelling of 538332749 in words is "five hundred thirty-eight million, three hundred thirty-two thousand, seven hundred forty-nine".