670898815 has 16 divisors (see below), whose sum is σ = 818753760. Its totient is φ = 527679360.

The previous prime is 670898803. The next prime is 670898827. The reversal of 670898815 is 518898076.

It is an interprime number because it is at equal distance from previous prime (670898803) and next prime (670898827).

It is not a de Polignac number, because 670898815 - 2¹¹ = 670896767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66697 + ... + 76093.

It is an arithmetic number, because the mean of its divisors is an integer number (51172110).

Almost surely, 2^670898815 is an apocalyptic number.

670898815 is a deficient number, since it is larger than the sum of its proper divisors (147854945).

670898815 is a wasteful number, since it uses less digits than its factorization.

670898815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9642.

The product of its (nonzero) digits is 967680, while the sum is 52.

The square root of 670898815 is about 25901.7145185410. The cubic root of 670898815 is about 875.4251278355.

The spelling of 670898815 in words is "six hundred seventy million, eight hundred ninety-eight thousand, eight hundred fifteen".