38469621 has 4 divisors (see below), whose sum is σ = 51292832. Its totient is φ = 25646412.

The previous prime is 38469617. The next prime is 38469643. The reversal of 38469621 is 12696483.

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 not a de Polignac number, because 38469621 - 2² = 38469617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38469621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38469611) 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, 6411601 + ... + 6411606.

It is an arithmetic number, because the mean of its divisors is an integer number (12823208).

Almost surely, 2^38469621 is an apocalyptic number.

It is an amenable number.

38469621 is a deficient number, since it is larger than the sum of its proper divisors (12823211).

38469621 is a wasteful number, since it uses less digits than its factorization.

38469621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12823210.

The product of its digits is 62208, while the sum is 39.

The square root of 38469621 is about 6202.3883303128. The cubic root of 38469621 is about 337.5768340844.

The spelling of 38469621 in words is "thirty-eight million, four hundred sixty-nine thousand, six hundred twenty-one".