106906778 has 32 divisors (see below), whose sum is σ = 186297408. Its totient is φ = 45472000.

The previous prime is 106906769. The next prime is 106906819. The reversal of 106906778 is 877609601.

It is a super-2 number, since 2×106906778² = 22858118364682568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72953 + ... + 74403.

It is an arithmetic number, because the mean of its divisors is an integer number (5821794).

Almost surely, 2^106906778 is an apocalyptic number.

106906778 is a deficient number, since it is larger than the sum of its proper divisors (79390630).

106906778 is a wasteful number, since it uses less digits than its factorization.

106906778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 106906778 is about 10339.5733954550. The cubic root of 106906778 is about 474.6080282483.

The spelling of 106906778 in words is "one hundred six million, nine hundred six thousand, seven hundred seventy-eight".