4089629 has 4 divisors (see below), whose sum is σ = 4097184. Its totient is φ = 4082076.

The previous prime is 4089619. The next prime is 4089643. The reversal of 4089629 is 9269804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4089629 - 2²⁰ = 3041053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4089592 and 4089601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4089619) 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, 2897 + ... + 4070.

It is an arithmetic number, because the mean of its divisors is an integer number (1024296).

Almost surely, 2^4089629 is an apocalyptic number.

It is an amenable number.

4089629 is a deficient number, since it is larger than the sum of its proper divisors (7555).

4089629 is an equidigital number, since it uses as much as digits as its factorization.

4089629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7554.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 4089629 is about 2022.2831156888. The cubic root of 4089629 is about 159.9170012233.

The spelling of 4089629 in words is "four million, eighty-nine thousand, six hundred twenty-nine".