68984929 has 16 divisors (see below), whose sum is σ = 79011072. Its totient is φ = 59666688.

The previous prime is 68984921. The next prime is 68984969. The reversal of 68984929 is 92948986.

It is a cyclic number.

It is not a de Polignac number, because 68984929 - 2³ = 68984921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68984929.

It is not an unprimeable number, because it can be changed into a prime (68984921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61992 + ... + 63094.

It is an arithmetic number, because the mean of its divisors is an integer number (4938192).

Almost surely, 2^68984929 is an apocalyptic number.

It is an amenable number.

68984929 is a deficient number, since it is larger than the sum of its proper divisors (10026143).

68984929 is a wasteful number, since it uses less digits than its factorization.

68984929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its digits is 2239488, while the sum is 55.

The square root of 68984929 is about 8305.7166457808. The cubic root of 68984929 is about 410.1267286218.

The spelling of 68984929 in words is "sixty-eight million, nine hundred eighty-four thousand, nine hundred twenty-nine".