670417481 has 2 divisors, whose sum is σ = 670417482. Its totient is φ = 670417480.

The previous prime is 670417459. The next prime is 670417499. The reversal of 670417481 is 184714076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 517153081 + 153264400 = 22741^2 + 12380^2 .

It is a cyclic number.

It is not a de Polignac number, because 670417481 - 2⁶ = 670417417 is a prime.

It is a super-2 number, since 2×670417481² = 898919197660770722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (670417411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335208740 + 335208741.

It is an arithmetic number, because the mean of its divisors is an integer number (335208741).

Almost surely, 2^670417481 is an apocalyptic number.

It is an amenable number.

670417481 is a deficient number, since it is larger than the sum of its proper divisors (1).

670417481 is an equidigital number, since it uses as much as digits as its factorization.

670417481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 670417481 is about 25892.4213043122. The cubic root of 670417481 is about 875.2157208530.

The spelling of 670417481 in words is "six hundred seventy million, four hundred seventeen thousand, four hundred eighty-one".