38104921 has 8 divisors (see below), whose sum is σ = 40172544. Its totient is φ = 36089760.

The previous prime is 38104909. The next prime is 38104967. The reversal of 38104921 is 12940183.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38104921 - 2¹⁷ = 37973849 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 38104921.

It is not an unprimeable number, because it can be changed into a prime (38104421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11620 + ... + 14533.

It is an arithmetic number, because the mean of its divisors is an integer number (5021568).

Almost surely, 2^38104921 is an apocalyptic number.

38104921 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

38104921 is a deficient number, since it is larger than the sum of its proper divisors (2067623).

38104921 is a wasteful number, since it uses less digits than its factorization.

38104921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26231.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 38104921 is about 6172.9183535828. The cubic root of 38104921 is about 336.5066789864.

The spelling of 38104921 in words is "thirty-eight million, one hundred four thousand, nine hundred twenty-one".