4387121 has 8 divisors (see below), whose sum is σ = 4510080. Its totient is φ = 4265488.

The previous prime is 4387099. The next prime is 4387133. The reversal of 4387121 is 1217834.

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 4387121 - 2²² = 192817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4387171) 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, 12470 + ... + 12816.

It is an arithmetic number, because the mean of its divisors is an integer number (563760).

Almost surely, 2^4387121 is an apocalyptic number.

It is an amenable number.

4387121 is a deficient number, since it is larger than the sum of its proper divisors (122959).

4387121 is a wasteful number, since it uses less digits than its factorization.

4387121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663.

The product of its digits is 1344, while the sum is 26.

The square root of 4387121 is about 2094.5455354324. The cubic root of 4387121 is about 163.7042185012.

The spelling of 4387121 in words is "four million, three hundred eighty-seven thousand, one hundred twenty-one".