68212089 has 48 divisors (see below), whose sum is σ = 116138880. Its totient is φ = 38142720.

The previous prime is 68212073. The next prime is 68212103. The reversal of 68212089 is 98021286.

It is not a de Polignac number, because 68212089 - 2⁴ = 68212073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68212009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65517 + ... + 66549.

It is an arithmetic number, because the mean of its divisors is an integer number (2419560).

Almost surely, 2^68212089 is an apocalyptic number.

68212089 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

68212089 is a deficient number, since it is larger than the sum of its proper divisors (47926791).

68212089 is a wasteful number, since it uses less digits than its factorization.

68212089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 68212089 is about 8259.0610241116. The cubic root of 68212089 is about 408.5894198512.

The spelling of 68212089 in words is "sixty-eight million, two hundred twelve thousand, eighty-nine".