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67492897 is a prime number
BaseRepresentation
bin1000000010111…
…01110000100001
311200222222211221
410001131300201
5114234233042
610410335041
71446452203
oct401356041
9150888757
1067492897
113510945a
121a72a481
1310ca1634
148d6c773
155dd2d67
hex405dc21

67492897 has 2 divisors, whose sum is σ = 67492898. Its totient is φ = 67492896.

The previous prime is 67492853. The next prime is 67492933. The reversal of 67492897 is 79829476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47458321 + 20034576 = 6889^2 + 4476^2 .

It is a cyclic number.

It is not a de Polignac number, because 67492897 - 219 = 66968609 is a prime.

It is a super-2 number, since 2×674928972 = 9110582290905218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67492837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33746448 + 33746449.

It is an arithmetic number, because the mean of its divisors is an integer number (33746449).

Almost surely, 267492897 is an apocalyptic number.

It is an amenable number.

67492897 is a deficient number, since it is larger than the sum of its proper divisors (1).

67492897 is an equidigital number, since it uses as much as digits as its factorization.

67492897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The square root of 67492897 is about 8215.4060763909. The cubic root of 67492897 is about 407.1483601302.

The spelling of 67492897 in words is "sixty-seven million, four hundred ninety-two thousand, eight hundred ninety-seven".