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29507897 is a prime number
BaseRepresentation
bin111000010010…
…0000100111001
32001112011020002
41300210010321
530023223042
62532242345
7505545566
oct160440471
961464202
1029507897
11157247a1
129a703b5
136161cc3
143cc186d
1528cd132
hex1c24139

29507897 has 2 divisors, whose sum is σ = 29507898. Its totient is φ = 29507896.

The previous prime is 29507879. The next prime is 29507899. The reversal of 29507897 is 79870592.

Together with previous prime (29507879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29474041 + 33856 = 5429^2 + 184^2 .

It is a cyclic number.

It is not a de Polignac number, because 29507897 - 28 = 29507641 is a prime.

Together with 29507899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29507899) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14753948 + 14753949.

It is an arithmetic number, because the mean of its divisors is an integer number (14753949).

Almost surely, 229507897 is an apocalyptic number.

It is an amenable number.

29507897 is a deficient number, since it is larger than the sum of its proper divisors (1).

29507897 is an equidigital number, since it uses as much as digits as its factorization.

29507897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 29507897 is about 5432.1171747303. The cubic root of 29507897 is about 309.0148992791.

The spelling of 29507897 in words is "twenty-nine million, five hundred seven thousand, eight hundred ninety-seven".