68571090 has 192 divisors, whose sum is σ = 218661120. Its totient is φ = 15240960.

The previous prime is 68571089. The next prime is 68571091. The reversal of 68571090 is 9017586.

It is an interprime number because it is at equal distance from previous prime (68571089) and next prime (68571091).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68571091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 939294 + ... + 939366.

It is an arithmetic number, because the mean of its divisors is an integer number (1138860).

Almost surely, 2^68571090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68571090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109330560).

68571090 is an abundant number, since it is smaller than the sum of its proper divisors (150090030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68571090 is a wasteful number, since it uses less digits than its factorization.

68571090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 68571090 is about 8280.7662688908. The cubic root of 68571090 is about 409.3049695875.

The spelling of 68571090 in words is "sixty-eight million, five hundred seventy-one thousand, ninety".