670834881 has 12 divisors (see below), whose sum is σ = 1019983120. Its totient is φ = 423685080.

The previous prime is 670834861. The next prime is 670834891. The reversal of 670834881 is 188438076.

It is not a de Polignac number, because 670834881 - 2⁵ = 670834849 is a prime.

It is a super-2 number, since 2×670834881² = 900038875132568322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670834811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1961335 + ... + 1961676.

Almost surely, 2^670834881 is an apocalyptic number.

It is an amenable number.

670834881 is a deficient number, since it is larger than the sum of its proper divisors (349148239).

670834881 is a wasteful number, since it uses less digits than its factorization.

670834881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923036 (or 3923033 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 670834881 is about 25900.4803237315. The cubic root of 670834881 is about 875.3973187696.

The spelling of 670834881 in words is "six hundred seventy million, eight hundred thirty-four thousand, eight hundred eighty-one".