670089881 has 8 divisors (see below), whose sum is σ = 677948544. Its totient is φ = 662257440.

The previous prime is 670089877. The next prime is 670089883. The reversal of 670089881 is 188980076.

670089881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 670089881 - 2² = 670089877 is a prime.

It is a super-2 number, since 2×670089881² = 898040897237188322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670089883) 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, 47420 + ... + 59906.

It is an arithmetic number, because the mean of its divisors is an integer number (84743568).

Almost surely, 2^670089881 is an apocalyptic number.

It is an amenable number.

670089881 is a deficient number, since it is larger than the sum of its proper divisors (7858663).

670089881 is a wasteful number, since it uses less digits than its factorization.

670089881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13111.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 670089881 is about 25886.0943558506. The cubic root of 670089881 is about 875.0731393557.

The spelling of 670089881 in words is "six hundred seventy million, eighty-nine thousand, eight hundred eighty-one".