3800121 has 16 divisors (see below), whose sum is σ = 5503680. Its totient is φ = 2318400.

The previous prime is 3800119. The next prime is 3800149. The reversal of 3800121 is 1210083.

It is a happy number.

It is not a de Polignac number, because 3800121 - 2¹ = 3800119 is a prime.

It is a super-2 number, since 2×3800121² = 28881839229282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3800121.

It is not an unprimeable number, because it can be changed into a prime (3800021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5071 + ... + 5771.

It is an arithmetic number, because the mean of its divisors is an integer number (343980).

Almost surely, 2^3800121 is an apocalyptic number.

It is an amenable number.

3800121 is a deficient number, since it is larger than the sum of its proper divisors (1703559).

3800121 is a wasteful number, since it uses less digits than its factorization.

3800121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 3800121 is about 1949.3899045599. The cubic root of 3800121 is about 156.0507313636.

The spelling of 3800121 in words is "three million, eight hundred thousand, one hundred twenty-one".