67871052 has 18 divisors (see below), whose sum is σ = 171563028. Its totient is φ = 22623672.

The previous prime is 67871039. The next prime is 67871057. The reversal of 67871052 is 25017876.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1885307 = 67871052 / (6 + 7 + 8 + 7 + 1 + 0 + 5 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 67870998 and 67871016.

It is not an unprimeable number, because it can be changed into a prime (67871057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 942618 + ... + 942689.

Almost surely, 2^67871052 is an apocalyptic number.

It is an amenable number.

67871052 is an abundant number, since it is smaller than the sum of its proper divisors (103691976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67871052 is a wasteful number, since it uses less digits than its factorization.

67871052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885317 (or 1885312 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 67871052 is about 8238.3889201712. The cubic root of 67871052 is about 407.9073463194.

The spelling of 67871052 in words is "sixty-seven million, eight hundred seventy-one thousand, fifty-two".