68290219 has 4 divisors (see below), whose sum is σ = 69309544. Its totient is φ = 67270896.

The previous prime is 68290213. The next prime is 68290267. The reversal of 68290219 is 91209286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68290219 - 2⁷ = 68290091 is a prime.

It is a super-2 number, since 2×68290219² = 9327108022135922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68290213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509562 + ... + 509695.

It is an arithmetic number, because the mean of its divisors is an integer number (17327386).

Almost surely, 2^68290219 is an apocalyptic number.

68290219 is a deficient number, since it is larger than the sum of its proper divisors (1019325).

68290219 is a wasteful number, since it uses less digits than its factorization.

68290219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019324.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 68290219 is about 8263.7896270416. The cubic root of 68290219 is about 408.7453595161.

The spelling of 68290219 in words is "sixty-eight million, two hundred ninety thousand, two hundred nineteen".