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246689 is a prime number
BaseRepresentation
bin111100001110100001
3110112101122
4330032201
530343224
65142025
72045132
oct741641
9415348
10246689
11159383
12ba915
1388391
1465c89
154d15e
hex3c3a1

246689 has 2 divisors, whose sum is σ = 246690. Its totient is φ = 246688.

The previous prime is 246683. The next prime is 246707. The reversal of 246689 is 986642.

246689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153664 + 93025 = 392^2 + 305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-246689 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (246683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123344 + 123345.

It is an arithmetic number, because the mean of its divisors is an integer number (123345).

2246689 is an apocalyptic number.

It is an amenable number.

246689 is a deficient number, since it is larger than the sum of its proper divisors (1).

246689 is an equidigital number, since it uses as much as digits as its factorization.

246689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 246689 is about 496.6779640773. The cubic root of 246689 is about 62.7167090598.

The spelling of 246689 in words is "two hundred forty-six thousand, six hundred eighty-nine".