68797215 has 64 divisors (see below), whose sum is σ = 133816320. Its totient is φ = 33384960.

The previous prime is 68797213. The next prime is 68797231. The reversal of 68797215 is 51279786.

It is not a de Polignac number, because 68797215 - 2¹ = 68797213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68797213) 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 63 ways as a sum of consecutive naturals, for example, 70662 + ... + 71628.

It is an arithmetic number, because the mean of its divisors is an integer number (2090880).

Almost surely, 2^68797215 is an apocalyptic number.

68797215 is a deficient number, since it is larger than the sum of its proper divisors (65019105).

68797215 is a wasteful number, since it uses less digits than its factorization.

68797215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029 (or 1023 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 68797215 is about 8294.4086588496. The cubic root of 68797215 is about 409.7543938495.

The spelling of 68797215 in words is "sixty-eight million, seven hundred ninety-seven thousand, two hundred fifteen".