62690221 has 6 divisors (see below), whose sum is σ = 68907566. Its totient is φ = 56991000.

The previous prime is 62690209. The next prime is 62690239. The reversal of 62690221 is 12209626.

It can be written as a sum of positive squares in only one way, i.e., 45765225 + 16924996 = 6765^2 + 4114^2 .

It is not a de Polignac number, because 62690221 - 2⁷ = 62690093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 62690221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62690261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258930 + ... + 259171.

Almost surely, 2^62690221 is an apocalyptic number.

It is an amenable number.

62690221 is a deficient number, since it is larger than the sum of its proper divisors (6217345).

62690221 is a wasteful number, since it uses less digits than its factorization.

62690221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518123 (or 518112 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 62690221 is about 7917.7156427849. The cubic root of 62690221 is about 397.2524645833.

Adding to 62690221 its reverse (12209626), we get a palindrome (74899847).

The spelling of 62690221 in words is "sixty-two million, six hundred ninety thousand, two hundred twenty-one".