68707389 has 4 divisors (see below), whose sum is σ = 91609856. Its totient is φ = 45804924.

The previous prime is 68707367. The next prime is 68707391. The reversal of 68707389 is 98370786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68707389 - 2¹¹ = 68705341 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 (68707189) 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 3 ways as a sum of consecutive naturals, for example, 11451229 + ... + 11451234.

It is an arithmetic number, because the mean of its divisors is an integer number (22902464).

Almost surely, 2^68707389 is an apocalyptic number.

It is an amenable number.

68707389 is a deficient number, since it is larger than the sum of its proper divisors (22902467).

68707389 is a wasteful number, since it uses less digits than its factorization.

68707389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22902466.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 68707389 is about 8288.9920376364. The cubic root of 68707389 is about 409.5759824180.

It can be divided in two parts, 68707 and 389, that added together give a palindrome (69096).

The spelling of 68707389 in words is "sixty-eight million, seven hundred seven thousand, three hundred eighty-nine".