108977636 has 6 divisors (see below), whose sum is σ = 190710870. Its totient is φ = 54488816.

The previous prime is 108977629. The next prime is 108977639. The reversal of 108977636 is 636779801.

It can be written as a sum of positive squares in only one way, i.e., 92929600 + 16048036 = 9640^2 + 4006^2 .

It is a super-2 number, since 2×108977636² = 23752250296296992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (108977639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13622201 + ... + 13622208.

It is an arithmetic number, because the mean of its divisors is an integer number (31785145).

Almost surely, 2^108977636 is an apocalyptic number.

It is an amenable number.

108977636 is a deficient number, since it is larger than the sum of its proper divisors (81733234).

108977636 is a wasteful number, since it uses less digits than its factorization.

108977636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27244413 (or 27244411 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 108977636 is about 10439.2354126152. The cubic root of 108977636 is about 477.6529462629.

The spelling of 108977636 in words is "one hundred eight million, nine hundred seventy-seven thousand, six hundred thirty-six".