62642021 has 4 divisors (see below), whose sum is σ = 67460652. Its totient is φ = 57823392.

The previous prime is 62642003. The next prime is 62642029. The reversal of 62642021 is 12024626.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12024626 = 2 ⋅6012313.

It can be written as a sum of positive squares in 2 ways, for example, as 38925121 + 23716900 = 6239^2 + 4870^2 .

It is a cyclic number.

It is not a de Polignac number, because 62642021 - 2¹⁰ = 62640997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62642029) 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, 2409296 + ... + 2409321.

It is an arithmetic number, because the mean of its divisors is an integer number (16865163).

Almost surely, 2^62642021 is an apocalyptic number.

It is an amenable number.

62642021 is a deficient number, since it is larger than the sum of its proper divisors (4818631).

62642021 is a wasteful number, since it uses less digits than its factorization.

62642021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818630.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 62642021 is about 7914.6712502794. The cubic root of 62642021 is about 397.1506279765.

Adding to 62642021 its reverse (12024626), we get a palindrome (74666647).

The spelling of 62642021 in words is "sixty-two million, six hundred forty-two thousand, twenty-one".