67643053 has 2 divisors, whose sum is σ = 67643054. Its totient is φ = 67643052.

The previous prime is 67643027. The next prime is 67643057. The reversal of 67643053 is 35034676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53187849 + 14455204 = 7293^2 + 3802^2 .

It is a cyclic number.

It is not a de Polignac number, because 67643053 - 2²¹ = 65545901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67643057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33821526 + 33821527.

It is an arithmetic number, because the mean of its divisors is an integer number (33821527).

Almost surely, 2^67643053 is an apocalyptic number.

It is an amenable number.

67643053 is a deficient number, since it is larger than the sum of its proper divisors (1).

67643053 is an equidigital number, since it uses as much as digits as its factorization.

67643053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 67643053 is about 8224.5396831677. The cubic root of 67643053 is about 407.4500732991.

The spelling of 67643053 in words is "sixty-seven million, six hundred forty-three thousand, fifty-three".