106620638 has 16 divisors (see below), whose sum is σ = 163126656. Its totient is φ = 52255320.

The previous prime is 106620601. The next prime is 106620667. The reversal of 106620638 is 836026601.

It is a super-2 number, since 2×106620638² = 22735920895054088, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19295 + ... + 24197.

It is an arithmetic number, because the mean of its divisors is an integer number (10195416).

Almost surely, 2^106620638 is an apocalyptic number.

106620638 is a deficient number, since it is larger than the sum of its proper divisors (56506018).

106620638 is a wasteful number, since it uses less digits than its factorization.

106620638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5119.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 106620638 is about 10325.7269961974. The cubic root of 106620638 is about 474.1842145107.

The spelling of 106620638 in words is "one hundred six million, six hundred twenty thousand, six hundred thirty-eight".