670615373 has 2 divisors, whose sum is σ = 670615374. Its totient is φ = 670615372.

The previous prime is 670615367. The next prime is 670615391. The reversal of 670615373 is 373516076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 614395369 + 56220004 = 24787^2 + 7498^2 .

It is a cyclic number.

It is not a de Polignac number, because 670615373 - 2¹⁶ = 670549837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670611373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335307686 + 335307687.

It is an arithmetic number, because the mean of its divisors is an integer number (335307687).

Almost surely, 2^670615373 is an apocalyptic number.

It is an amenable number.

670615373 is a deficient number, since it is larger than the sum of its proper divisors (1).

670615373 is an equidigital number, since it uses as much as digits as its factorization.

670615373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 670615373 is about 25896.2424494366. The cubic root of 670615373 is about 875.3018269763.

The spelling of 670615373 in words is "six hundred seventy million, six hundred fifteen thousand, three hundred seventy-three".