68694669 has 8 divisors (see below), whose sum is σ = 101769920. Its totient is φ = 45796428.

The previous prime is 68694653. The next prime is 68694719. The reversal of 68694669 is 96649686.

It is a happy number.

It is not a de Polignac number, because 68694669 - 2⁴ = 68694653 is a prime.

It is a super-2 number, since 2×68694669² = 9437915098039122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68694469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272097 + ... + 1272150.

It is an arithmetic number, because the mean of its divisors is an integer number (12721240).

Almost surely, 2^68694669 is an apocalyptic number.

It is an amenable number.

68694669 is a deficient number, since it is larger than the sum of its proper divisors (33075251).

68694669 is a wasteful number, since it uses less digits than its factorization.

68694669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544256 (or 2544250 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 68694669 is about 8288.2247194438. The cubic root of 68694669 is about 409.5507055247.

The spelling of 68694669 in words is "sixty-eight million, six hundred ninety-four thousand, six hundred sixty-nine".