2378869 has 2 divisors, whose sum is σ = 2378870. Its totient is φ = 2378868.

The previous prime is 2378843. The next prime is 2378891. The reversal of 2378869 is 9688732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1656369 + 722500 = 1287^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 2378869 - 2⁹ = 2378357 is a prime.

It is a super-2 number, since 2×2378869² = 11318035438322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁷ + 3 + 7⁶ + 8⁵ + 8⁷ + 6³ + 9 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2378069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1189434 + 1189435.

It is an arithmetic number, because the mean of its divisors is an integer number (1189435).

2^2378869 is an apocalyptic number.

It is an amenable number.

2378869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2378869 is an equidigital number, since it uses as much as digits as its factorization.

2378869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 2378869 is about 1542.3582592900. The cubic root of 2378869 is about 133.4924925758.

The spelling of 2378869 in words is "two million, three hundred seventy-eight thousand, eight hundred sixty-nine".