4261621 has 8 divisors (see below), whose sum is σ = 5245184. Its totient is φ = 3371760.

The previous prime is 4261613. The next prime is 4261627. The reversal of 4261621 is 1261624.

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

It is not a de Polignac number, because 4261621 - 2³ = 4261613 is a prime.

It is a super-2 number, since 2×4261621² = 36322827095282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4261592 and 4261601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4261627) 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, 23325 + ... + 23506.

It is an arithmetic number, because the mean of its divisors is an integer number (655648).

Almost surely, 2^4261621 is an apocalyptic number.

It is an amenable number.

4261621 is a deficient number, since it is larger than the sum of its proper divisors (983563).

4261621 is a wasteful number, since it uses less digits than its factorization.

4261621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46851.

The product of its digits is 576, while the sum is 22.

The square root of 4261621 is about 2064.3693952391. The cubic root of 4261621 is about 162.1280930713.

The spelling of 4261621 in words is "four million, two hundred sixty-one thousand, six hundred twenty-one".