68670569 has 4 divisors (see below), whose sum is σ = 74913360. Its totient is φ = 62427780.

The previous prime is 68670533. The next prime is 68670577. The reversal of 68670569 is 96507686.

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 a cyclic number.

It is not a de Polignac number, because 68670569 - 2¹² = 68666473 is a prime.

It is a super-2 number, since 2×68670569² = 9431294093567522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68670529) 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 in 3 ways as a sum of consecutive naturals, for example, 3121379 + ... + 3121400.

It is an arithmetic number, because the mean of its divisors is an integer number (18728340).

Almost surely, 2^68670569 is an apocalyptic number.

It is an amenable number.

68670569 is a deficient number, since it is larger than the sum of its proper divisors (6242791).

68670569 is a wasteful number, since it uses less digits than its factorization.

68670569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6242790.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 68670569 is about 8286.7707220606. The cubic root of 68670569 is about 409.5028059976.

The spelling of 68670569 in words is "sixty-eight million, six hundred seventy thousand, five hundred sixty-nine".