670862811 has 24 divisors (see below), whose sum is σ = 957552960. Its totient is φ = 416625120.

The previous prime is 670862791. The next prime is 670862813. The reversal of 670862811 is 118268076.

It is not a de Polignac number, because 670862811 - 2⁷ = 670862683 is a prime.

It is a super-3 number, since 3×670862811³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 670862811.

It is not an unprimeable number, because it can be changed into a prime (670862813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210516 + ... + 213678.

It is an arithmetic number, because the mean of its divisors is an integer number (39898040).

Almost surely, 2^670862811 is an apocalyptic number.

670862811 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

670862811 is a deficient number, since it is larger than the sum of its proper divisors (286690149).

670862811 is a wasteful number, since it uses less digits than its factorization.

670862811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307 (or 3246 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 670862811 is about 25901.0194973094. The cubic root of 670862811 is about 875.4094675654.

The spelling of 670862811 in words is "six hundred seventy million, eight hundred sixty-two thousand, eight hundred eleven".