867279851 has 2 divisors, whose sum is σ = 867279852. Its totient is φ = 867279850.

The previous prime is 867279827. The next prime is 867279937. The reversal of 867279851 is 158972768.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-867279851 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 867279793 and 867279802.

It is not a weakly prime, because it can be changed into another prime (867279821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433639925 + 433639926.

It is an arithmetic number, because the mean of its divisors is an integer number (433639926).

Almost surely, 2^867279851 is an apocalyptic number.

867279851 is a deficient number, since it is larger than the sum of its proper divisors (1).

867279851 is an equidigital number, since it uses as much as digits as its factorization.

867279851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 53.

The square root of 867279851 is about 29449.6154643826. The cubic root of 867279851 is about 953.6443035631.

The spelling of 867279851 in words is "eight hundred sixty-seven million, two hundred seventy-nine thousand, eight hundred fifty-one".