68803449 has 40 divisors (see below), whose sum is σ = 109902432. Its totient is φ = 37964160.

The previous prime is 68803447. The next prime is 68803451. The reversal of 68803449 is 94430886.

68803449 = 272² + 273² + ... + 609².

It is an interprime number because it is at equal distance from previous prime (68803447) and next prime (68803451).

It is not a de Polignac number, because 68803449 - 2¹ = 68803447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68803449.

It is not an unprimeable number, because it can be changed into a prime (68803447) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 942477 + ... + 942549.

Almost surely, 2^68803449 is an apocalyptic number.

It is an amenable number.

68803449 is a deficient number, since it is larger than the sum of its proper divisors (41098983).

68803449 is an equidigital number, since it uses as much as digits as its factorization.

68803449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 68803449 is about 8294.7844456622. The cubic root of 68803449 is about 409.7667699887.

The spelling of 68803449 in words is "sixty-eight million, eight hundred three thousand, four hundred forty-nine".