38913629 has 4 divisors (see below), whose sum is σ = 41202684. Its totient is φ = 36624576.

The previous prime is 38913619. The next prime is 38913647. The reversal of 38913629 is 92631983.

38913629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92631983 = 859 ⋅107837.

It can be written as a sum of positive squares in 2 ways, for example, as 25989604 + 12924025 = 5098^2 + 3595^2 .

It is a cyclic number.

It is not a de Polignac number, because 38913629 - 2⁴ = 38913613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38913619) 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 3 ways as a sum of consecutive naturals, for example, 1144502 + ... + 1144535.

It is an arithmetic number, because the mean of its divisors is an integer number (10300671).

Almost surely, 2^38913629 is an apocalyptic number.

It is an amenable number.

38913629 is a deficient number, since it is larger than the sum of its proper divisors (2289055).

38913629 is a wasteful number, since it uses less digits than its factorization.

38913629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289054.

The product of its digits is 69984, while the sum is 41.

The square root of 38913629 is about 6238.0789510874. The cubic root of 38913629 is about 338.8706154002.

The spelling of 38913629 in words is "thirty-eight million, nine hundred thirteen thousand, six hundred twenty-nine".