70681089 has 8 divisors (see below), whose sum is σ = 96540192. Its totient is φ = 45971360.

The previous prime is 70681067. The next prime is 70681099. The reversal of 70681089 is 98018607.

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

It is a cyclic number.

It is not a de Polignac number, because 70681089 - 2¹¹ = 70679041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70681099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287199 + ... + 287444.

It is an arithmetic number, because the mean of its divisors is an integer number (12067524).

Almost surely, 2^70681089 is an apocalyptic number.

It is an amenable number.

70681089 is a deficient number, since it is larger than the sum of its proper divisors (25859103).

70681089 is a wasteful number, since it uses less digits than its factorization.

70681089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574687.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 70681089 is about 8407.2045889225. The cubic root of 70681089 is about 413.4608667476.

The spelling of 70681089 in words is "seventy million, six hundred eighty-one thousand, eighty-nine".