68290 has 8 divisors (see below), whose sum is σ = 122940. Its totient is φ = 27312.

The previous prime is 68281. The next prime is 68311. The reversal of 68290 is 9286.

It can be written as a sum of positive squares in 2 ways, for example, as 68121 + 169 = 261^2 + 13^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3405 + ... + 3424.

2⁶⁸²⁹⁰ is an apocalyptic number.

68290 is a deficient number, since it is larger than the sum of its proper divisors (54650).

68290 is a wasteful number, since it uses less digits than its factorization.

68290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6836.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 68290 is about 261.3235542388. The cubic root of 68290 is about 40.8744922580.

Subtracting from 68290 its sum of digits (25), we obtain a triangular number (68265 = T₃₆₉).

The spelling of 68290 in words is "sixty-eight thousand, two hundred ninety".