2278877 has 2 divisors, whose sum is σ = 2278878. Its totient is φ = 2278876.

The previous prime is 2278847. The next prime is 2278891. The reversal of 2278877 is 7788722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1378276 + 900601 = 1174^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 2278877 - 2⁶ = 2278813 is a prime.

It is a super-2 number, since 2×2278877² = 10386560762258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2278807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139438 + 1139439.

It is an arithmetic number, because the mean of its divisors is an integer number (1139439).

2^2278877 is an apocalyptic number.

It is an amenable number.

2278877 is a deficient number, since it is larger than the sum of its proper divisors (1).

2278877 is an equidigital number, since it uses as much as digits as its factorization.

2278877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87808, while the sum is 41.

The square root of 2278877 is about 1509.5949787940. The cubic root of 2278877 is about 131.5952747262.

The spelling of 2278877 in words is "two million, two hundred seventy-eight thousand, eight hundred seventy-seven".