62640043 has 2 divisors, whose sum is σ = 62640044. Its totient is φ = 62640042.

The previous prime is 62640037. The next prime is 62640077. The reversal of 62640043 is 34004626.

62640043 is nontrivially palindromic in base 8.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 62640043 - 2⁹ = 62639531 is a prime.

It is not a weakly prime, because it can be changed into another prime (62640023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31320021 + 31320022.

It is an arithmetic number, because the mean of its divisors is an integer number (31320022).

Almost surely, 2^62640043 is an apocalyptic number.

62640043 is a deficient number, since it is larger than the sum of its proper divisors (1).

62640043 is an equidigital number, since it uses as much as digits as its factorization.

62640043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 62640043 is about 7914.5462914813. The cubic root of 62640043 is about 397.1464477569.

Adding to 62640043 its reverse (34004626), we get a palindrome (96644669).

The spelling of 62640043 in words is "sixty-two million, six hundred forty thousand, forty-three".