4346021 has 4 divisors (see below), whose sum is σ = 4356492. Its totient is φ = 4335552.

The previous prime is 4346009. The next prime is 4346029. The reversal of 4346021 is 1206434.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1206434 = 2 ⋅603217.

It can be written as a sum of positive squares in 2 ways, for example, as 923521 + 3422500 = 961^2 + 1850^2 .

It is a cyclic number.

It is not a de Polignac number, because 4346021 - 2¹⁰ = 4344997 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4345984 and 4346002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4346029) 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, 4586 + ... + 5451.

It is an arithmetic number, because the mean of its divisors is an integer number (1089123).

Almost surely, 2^4346021 is an apocalyptic number.

It is an amenable number.

4346021 is a deficient number, since it is larger than the sum of its proper divisors (10471).

4346021 is a wasteful number, since it uses less digits than its factorization.

4346021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10470.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4346021 is about 2084.7112509890. The cubic root of 4346021 is about 163.1914019924.

It can be divided in two parts, 43 and 46021, that added together give a palindrome (46064).

The spelling of 4346021 in words is "four million, three hundred forty-six thousand, twenty-one".