11878577 has 2 divisors, whose sum is σ = 11878578. Its totient is φ = 11878576.

The previous prime is 11878507. The next prime is 11878579. The reversal of 11878577 is 77587811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6195121 + 5683456 = 2489^2 + 2384^2 .

It is a cyclic number.

It is not a de Polignac number, because 11878577 - 2²² = 7684273 is a prime.

It is a super-2 number, since 2×11878577² = 282201183089858, which contains 22 as substring.

Together with 11878579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11878579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5939288 + 5939289.

It is an arithmetic number, because the mean of its divisors is an integer number (5939289).

Almost surely, 2^11878577 is an apocalyptic number.

It is an amenable number.

11878577 is a deficient number, since it is larger than the sum of its proper divisors (1).

11878577 is an equidigital number, since it uses as much as digits as its factorization.

11878577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109760, while the sum is 44.

The square root of 11878577 is about 3446.5311546539. The cubic root of 11878577 is about 228.1680368419.

The spelling of 11878577 in words is "eleven million, eight hundred seventy-eight thousand, five hundred seventy-seven".