67975057 has 2 divisors, whose sum is σ = 67975058. Its totient is φ = 67975056.

The previous prime is 67975049. The next prime is 67975133. The reversal of 67975057 is 75057976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58920976 + 9054081 = 7676^2 + 3009^2 .

It is a cyclic number.

It is not a de Polignac number, because 67975057 - 2³ = 67975049 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 67974998 and 67975016.

It is not a weakly prime, because it can be changed into another prime (67975657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33987528 + 33987529.

It is an arithmetic number, because the mean of its divisors is an integer number (33987529).

Almost surely, 2^67975057 is an apocalyptic number.

It is an amenable number.

67975057 is a deficient number, since it is larger than the sum of its proper divisors (1).

67975057 is an equidigital number, since it uses as much as digits as its factorization.

67975057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 463050, while the sum is 46.

The square root of 67975057 is about 8244.6987209964. The cubic root of 67975057 is about 408.1155978516.

The spelling of 67975057 in words is "sixty-seven million, nine hundred seventy-five thousand, fifty-seven".