68696649 has 12 divisors (see below), whose sum is σ = 113404096. Its totient is φ = 39255192.

The previous prime is 68696627. The next prime is 68696669. The reversal of 68696649 is 94669686.

It is a happy number.

It is not a de Polignac number, because 68696649 - 2⁷ = 68696521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68696595 and 68696604.

It is not an unprimeable number, because it can be changed into a prime (68696669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545149 + ... + 545274.

Almost surely, 2^68696649 is an apocalyptic number.

It is an amenable number.

68696649 is a deficient number, since it is larger than the sum of its proper divisors (44707447).

68696649 is a wasteful number, since it uses less digits than its factorization.

68696649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090436 (or 1090433 counting only the distinct ones).

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

The square root of 68696649 is about 8288.3441651514. The cubic root of 68696649 is about 409.5546403405.

The spelling of 68696649 in words is "sixty-eight million, six hundred ninety-six thousand, six hundred forty-nine".