68963997 has 4 divisors (see below), whose sum is σ = 91952000. Its totient is φ = 45975996.

The previous prime is 68963989. The next prime is 68964011. The reversal of 68963997 is 79936986.

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 not a de Polignac number, because 68963997 - 2³ = 68963989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68963957) 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, 11493997 + ... + 11494002.

It is an arithmetic number, because the mean of its divisors is an integer number (22988000).

Almost surely, 2^68963997 is an apocalyptic number.

It is an amenable number.

68963997 is a deficient number, since it is larger than the sum of its proper divisors (22988003).

68963997 is a wasteful number, since it uses less digits than its factorization.

68963997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22988002.

The product of its digits is 4408992, while the sum is 57.

The square root of 68963997 is about 8304.4564542178. The cubic root of 68963997 is about 410.0852430334.

The spelling of 68963997 in words is "sixty-eight million, nine hundred sixty-three thousand, nine hundred ninety-seven".