20062621 has 8 divisors (see below), whose sum is σ = 20678840. Its totient is φ = 19450368.

The previous prime is 20062597. The next prime is 20062657. The reversal of 20062621 is 12626002.

It can be written as a sum of positive squares in 4 ways, for example, as 10692900 + 9369721 = 3270^2 + 3061^2 .

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 20062621 - 2⁹ = 20062109 is a prime.

It is a super-2 number, since 2×20062621² = 805017522779282, 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 (20062661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11665 + ... + 13273.

It is an arithmetic number, because the mean of its divisors is an integer number (2584855).

Almost surely, 2^20062621 is an apocalyptic number.

It is an amenable number.

20062621 is a deficient number, since it is larger than the sum of its proper divisors (616219).

20062621 is a wasteful number, since it uses less digits than its factorization.

20062621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20062621 is about 4479.1317238947. The cubic root of 20062621 is about 271.7247657407.

Adding to 20062621 its reverse (12626002), we get a palindrome (32688623).

The spelling of 20062621 in words is "twenty million, sixty-two thousand, six hundred twenty-one".