266870983 has 8 divisors (see below), whose sum is σ = 275448960. Its totient is φ = 258428280.

The previous prime is 266870957. The next prime is 266870993. The reversal of 266870983 is 389078662.

266870983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266870983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266870993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29803 + ... + 37708.

It is an arithmetic number, because the mean of its divisors is an integer number (34431120).

Almost surely, 2^266870983 is an apocalyptic number.

266870983 is a deficient number, since it is larger than the sum of its proper divisors (8577977).

266870983 is an equidigital number, since it uses as much as digits as its factorization.

266870983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67637.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 266870983 is about 16336.1863052550. The cubic root of 266870983 is about 643.8239354802.

The spelling of 266870983 in words is "two hundred sixty-six million, eight hundred seventy thousand, nine hundred eighty-three".