538808629 has 4 divisors (see below), whose sum is σ = 539423884. Its totient is φ = 538193376.

The previous prime is 538808597. The next prime is 538808651. The reversal of 538808629 is 926808835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 926808835 = 5 ⋅185361767.

It can be written as a sum of positive squares in 2 ways, for example, as 270602500 + 268206129 = 16450^2 + 16377^2 .

It is a cyclic number.

It is not a de Polignac number, because 538808629 - 2⁵ = 538808597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538808129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306312 + ... + 308065.

It is an arithmetic number, because the mean of its divisors is an integer number (134855971).

Almost surely, 2^538808629 is an apocalyptic number.

It is an amenable number.

538808629 is a deficient number, since it is larger than the sum of its proper divisors (615255).

538808629 is an equidigital number, since it uses as much as digits as its factorization.

538808629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615254.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 538808629 is about 23212.2517003414. The cubic root of 538808629 is about 813.7259776470.

The spelling of 538808629 in words is "five hundred thirty-eight million, eight hundred eight thousand, six hundred twenty-nine".