670450933 has 2 divisors, whose sum is σ = 670450934. Its totient is φ = 670450932.

The previous prime is 670450931. The next prime is 670450951. The reversal of 670450933 is 339054076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 588693169 + 81757764 = 24263^2 + 9042^2 .

It is a cyclic number.

It is not a de Polignac number, because 670450933 - 2¹ = 670450931 is a prime.

Together with 670450931, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 670450892 and 670450901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670450931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335225466 + 335225467.

It is an arithmetic number, because the mean of its divisors is an integer number (335225467).

Almost surely, 2^670450933 is an apocalyptic number.

It is an amenable number.

670450933 is a deficient number, since it is larger than the sum of its proper divisors (1).

670450933 is an equidigital number, since it uses as much as digits as its factorization.

670450933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 670450933 is about 25893.0672767828. The cubic root of 670450933 is about 875.2302775684.

The spelling of 670450933 in words is "six hundred seventy million, four hundred fifty thousand, nine hundred thirty-three".