62139689 has 2 divisors, whose sum is σ = 62139690. Its totient is φ = 62139688.

The previous prime is 62139683. The next prime is 62139713. The reversal of 62139689 is 98693126.

62139689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61889689 + 250000 = 7867^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 62139689 - 2⁸ = 62139433 is a prime.

It is a super-2 number, since 2×62139689² = 7722681898033442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (62139683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31069844 + 31069845.

It is an arithmetic number, because the mean of its divisors is an integer number (31069845).

Almost surely, 2^62139689 is an apocalyptic number.

It is an amenable number.

62139689 is a deficient number, since it is larger than the sum of its proper divisors (1).

62139689 is an equidigital number, since it uses as much as digits as its factorization.

62139689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 44.

The square root of 62139689 is about 7882.8731437211. The cubic root of 62139689 is about 396.0861820556.

The spelling of 62139689 in words is "sixty-two million, one hundred thirty-nine thousand, six hundred eighty-nine".