670816481 has 8 divisors (see below), whose sum is σ = 711235584. Its totient is φ = 630504000.

The previous prime is 670816453. The next prime is 670816499. The reversal of 670816481 is 184618076.

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 670816481 - 2⁶ = 670816417 is a prime.

It is a super-2 number, since 2×670816481² = 899989502362446722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670816381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13505 + ... + 39038.

It is an arithmetic number, because the mean of its divisors is an integer number (88904448).

Almost surely, 2^670816481 is an apocalyptic number.

It is an amenable number.

670816481 is a deficient number, since it is larger than the sum of its proper divisors (40419103).

670816481 is a wasteful number, since it uses less digits than its factorization.

670816481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53311.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 670816481 is about 25900.1251155279. The cubic root of 670816481 is about 875.3893150823.

The spelling of 670816481 in words is "six hundred seventy million, eight hundred sixteen thousand, four hundred eighty-one".