106638836 has 6 divisors (see below), whose sum is σ = 186617970. Its totient is φ = 53319416.

The previous prime is 106638803. The next prime is 106638859. The reversal of 106638836 is 638836601.

It can be written as a sum of positive squares in only one way, i.e., 105966436 + 672400 = 10294^2 + 820^2 .

It is a super-2 number, since 2×106638836² = 22743682686869792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106638793 and 106638802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13329851 + ... + 13329858.

It is an arithmetic number, because the mean of its divisors is an integer number (31102995).

Almost surely, 2^106638836 is an apocalyptic number.

It is an amenable number.

106638836 is a deficient number, since it is larger than the sum of its proper divisors (79979134).

106638836 is a wasteful number, since it uses less digits than its factorization.

106638836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26659713 (or 26659711 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 106638836 is about 10326.6081556337. The cubic root of 106638836 is about 474.2111908810.

The spelling of 106638836 in words is "one hundred six million, six hundred thirty-eight thousand, eight hundred thirty-six".