68770090 has 32 divisors (see below), whose sum is σ = 129153024. Its totient is φ = 26334720.

The previous prime is 68770067. The next prime is 68770109. The reversal of 68770090 is 9007786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28927 + ... + 31213.

It is an arithmetic number, because the mean of its divisors is an integer number (4036032).

Almost surely, 2^68770090 is an apocalyptic number.

68770090 is a deficient number, since it is larger than the sum of its proper divisors (60382934).

68770090 is a wasteful number, since it uses less digits than its factorization.

68770090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 68770090 is about 8292.7733599804. The cubic root of 68770090 is about 409.7005348428.

The spelling of 68770090 in words is "sixty-eight million, seven hundred seventy thousand, ninety".