Search a number
-
+
3868477 is a prime number
BaseRepresentation
bin1110110000011100111101
321021112112221
432300130331
51442242402
6214525341
744611234
oct16603475
97245487
103868477
112202498
121366851
13a55a52
14729b1b
15516337
hex3b073d

3868477 has 2 divisors, whose sum is σ = 3868478. Its totient is φ = 3868476.

The previous prime is 3868463. The next prime is 3868481. The reversal of 3868477 is 7748683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3261636 + 606841 = 1806^2 + 779^2 .

It is an emirp because it is prime and its reverse (7748683) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3868477 is a prime.

It is a super-2 number, since 2×38684772 = 29930228599058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3868427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934238 + 1934239.

It is an arithmetic number, because the mean of its divisors is an integer number (1934239).

Almost surely, 23868477 is an apocalyptic number.

It is an amenable number.

3868477 is a deficient number, since it is larger than the sum of its proper divisors (1).

3868477 is an equidigital number, since it uses as much as digits as its factorization.

3868477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 43.

The square root of 3868477 is about 1966.8444269947. The cubic root of 3868477 is about 156.9808488141.

The spelling of 3868477 in words is "three million, eight hundred sixty-eight thousand, four hundred seventy-seven".