267878061 has 24 divisors (see below), whose sum is σ = 446943744. Its totient is φ = 152799360.

The previous prime is 267878053. The next prime is 267878063. The reversal of 267878061 is 160878762.

It is not a de Polignac number, because 267878061 - 2³ = 267878053 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 267877998 and 267878016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (267878063) 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, 77901 + ... + 81266.

It is an arithmetic number, because the mean of its divisors is an integer number (18622656).

Almost surely, 2^267878061 is an apocalyptic number.

It is an amenable number.

267878061 is a deficient number, since it is larger than the sum of its proper divisors (179065683).

267878061 is a wasteful number, since it uses less digits than its factorization.

267878061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159201 (or 159198 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 267878061 is about 16366.9808150434. The cubic root of 267878061 is about 644.6327745576.

The spelling of 267878061 in words is "two hundred sixty-seven million, eight hundred seventy-eight thousand, sixty-one".