670263811 has 16 divisors (see below), whose sum is σ = 826386624. Its totient is φ = 530509824.

The previous prime is 670263809. The next prime is 670263821. The reversal of 670263811 is 118362076.

It is a cyclic number.

It is not a de Polignac number, because 670263811 - 2¹ = 670263809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670263821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46830 + ... + 59443.

It is an arithmetic number, because the mean of its divisors is an integer number (51649164).

Almost surely, 2^670263811 is an apocalyptic number.

670263811 is a deficient number, since it is larger than the sum of its proper divisors (156122813).

670263811 is a wasteful number, since it uses less digits than its factorization.

670263811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106350.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 670263811 is about 25889.4536636060. The cubic root of 670263811 is about 875.1488447741.

The spelling of 670263811 in words is "six hundred seventy million, two hundred sixty-three thousand, eight hundred eleven".