40108877 has 2 divisors, whose sum is σ = 40108878. Its totient is φ = 40108876.

The previous prime is 40108847. The next prime is 40108879. The reversal of 40108877 is 77880104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40018276 + 90601 = 6326^2 + 301^2 .

It is a cyclic number.

It is not a de Polignac number, because 40108877 - 2¹⁸ = 39846733 is a prime.

It is a super-2 number, since 2×40108877² = 3217444028402258, which contains 22 as substring.

Together with 40108879, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2439863 and since 40108877 and 2439863 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40108879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20054438 + 20054439.

It is an arithmetic number, because the mean of its divisors is an integer number (20054439).

Almost surely, 2^40108877 is an apocalyptic number.

It is an amenable number.

40108877 is a deficient number, since it is larger than the sum of its proper divisors (1).

40108877 is an equidigital number, since it uses as much as digits as its factorization.

40108877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 40108877 is about 6333.1569536843. The cubic root of 40108877 is about 342.3052033122.

The spelling of 40108877 in words is "forty million, one hundred eight thousand, eight hundred seventy-seven".