10616021 has 8 divisors (see below), whose sum is σ = 11473560. Its totient is φ = 9764352.

The previous prime is 10616017. The next prime is 10616029. The reversal of 10616021 is 12061601.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 286225 + 10329796 = 535^2 + 3214^2 .

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

It is not a de Polignac number, because 10616021 - 2² = 10616017 is a prime.

It is a super-2 number, since 2×10616021² = 225399803744882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10616029) 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, 2765 + ... + 5373.

It is an arithmetic number, because the mean of its divisors is an integer number (1434195).

Almost surely, 2^10616021 is an apocalyptic number.

It is an amenable number.

10616021 is a deficient number, since it is larger than the sum of its proper divisors (857539).

10616021 is a wasteful number, since it uses less digits than its factorization.

10616021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 10616021 is about 3258.2235957650. The cubic root of 10616021 is about 219.7795381022.

Adding to 10616021 its reverse (12061601), we get a palindrome (22677622).

The spelling of 10616021 in words is "ten million, six hundred sixteen thousand, twenty-one".