Search a number
-
+
397058897 is a prime number
BaseRepresentation
bin10111101010101…
…010001101010001
31000200010200102002
4113222222031101
51303121341042
6103222203345
712560642054
oct2752521521
91020120362
10397058897
11194147254
12b0b83555
13643519c1
143aa3aa9b
1524cd2132
hex17aaa351

397058897 has 2 divisors, whose sum is σ = 397058898. Its totient is φ = 397058896.

The previous prime is 397058869. The next prime is 397058933. The reversal of 397058897 is 798850793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394856641 + 2202256 = 19871^2 + 1484^2 .

It is a cyclic number.

It is not a de Polignac number, because 397058897 - 26 = 397058833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (397058197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198529448 + 198529449.

It is an arithmetic number, because the mean of its divisors is an integer number (198529449).

Almost surely, 2397058897 is an apocalyptic number.

It is an amenable number.

397058897 is a deficient number, since it is larger than the sum of its proper divisors (1).

397058897 is an equidigital number, since it uses as much as digits as its factorization.

397058897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The square root of 397058897 is about 19926.3367682070. The cubic root of 397058897 is about 734.9960028783.

The spelling of 397058897 in words is "three hundred ninety-seven million, fifty-eight thousand, eight hundred ninety-seven".