68076929 has 8 divisors (see below), whose sum is σ = 70612968. Its totient is φ = 65577600.

The previous prime is 68076919. The next prime is 68076947. The reversal of 68076929 is 92967086.

It can be written as a sum of positive squares in 4 ways, for example, as 32947600 + 35129329 = 5740^2 + 5927^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68076929 - 2²⁴ = 51299713 is a prime.

It is a super-3 number, since 3×68076929³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68076919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5372 + ... + 12845.

It is an arithmetic number, because the mean of its divisors is an integer number (8826621).

Almost surely, 2^68076929 is an apocalyptic number.

It is an amenable number.

68076929 is a deficient number, since it is larger than the sum of its proper divisors (2536039).

68076929 is a wasteful number, since it uses less digits than its factorization.

68076929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18355.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 68076929 is about 8250.8744385065. The cubic root of 68076929 is about 408.3193725987.

The spelling of 68076929 in words is "sixty-eight million, seventy-six thousand, nine hundred twenty-nine".