670619 has 2 divisors, whose sum is σ = 670620. Its totient is φ = 670618.

The previous prime is 670613. The next prime is 670627. The reversal of 670619 is 916076.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670619 - 2⁸ = 670363 is a prime.

It is a super-2 number, since 2×670619² = 899459686322, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 670591 and 670600.

It is not a weakly prime, because it can be changed into another prime (670613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335309 + 335310.

It is an arithmetic number, because the mean of its divisors is an integer number (335310).

2⁶⁷⁰⁶¹⁹ is an apocalyptic number.

670619 is a deficient number, since it is larger than the sum of its proper divisors (1).

670619 is an equidigital number, since it uses as much as digits as its factorization.

670619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 670619 is about 818.9133043247. The cubic root of 670619 is about 87.5303404987.

The spelling of 670619 in words is "six hundred seventy thousand, six hundred nineteen".