68763905 has 24 divisors (see below), whose sum is σ = 100170432. Its totient is φ = 45098592.

The previous prime is 68763899. The next prime is 68763911. The reversal of 68763905 is 50936786.

It is an interprime number because it is at equal distance from previous prime (68763899) and next prime (68763911).

It is not a de Polignac number, because 68763905 - 2⁴ = 68763889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467 + ... + 11736.

It is an arithmetic number, because the mean of its divisors is an integer number (4173768).

Almost surely, 2^68763905 is an apocalyptic number.

It is an amenable number.

68763905 is a deficient number, since it is larger than the sum of its proper divisors (31406527).

68763905 is a wasteful number, since it uses less digits than its factorization.

68763905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12245 (or 12238 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 68763905 is about 8292.4004365443. The cubic root of 68763905 is about 409.6882520137.

The spelling of 68763905 in words is "sixty-eight million, seven hundred sixty-three thousand, nine hundred five".