67870971 has 24 divisors (see below), whose sum is σ = 112729344. Its totient is φ = 38545200.

The previous prime is 67870967. The next prime is 67870973. The reversal of 67870971 is 17907876.

It is a happy number.

It is not a de Polignac number, because 67870971 - 2² = 67870967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67870973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7296 + ... + 13746.

It is an arithmetic number, because the mean of its divisors is an integer number (4697056).

Almost surely, 2^67870971 is an apocalyptic number.

67870971 is a deficient number, since it is larger than the sum of its proper divisors (44858373).

67870971 is a wasteful number, since it uses less digits than its factorization.

67870971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631 (or 6628 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 67870971 is about 8238.3840041600. The cubic root of 67870971 is about 407.9071840484.

The spelling of 67870971 in words is "sixty-seven million, eight hundred seventy thousand, nine hundred seventy-one".