106878890 has 8 divisors (see below), whose sum is σ = 192382020. Its totient is φ = 42751552.

The previous prime is 106878883. The next prime is 106878901. The reversal of 106878890 is 98878601.

It can be written as a sum of positive squares in 2 ways, for example, as 98624761 + 8254129 = 9931^2 + 2873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×106878890² = 22846194255264200, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 5343935 + ... + 5343954.

Almost surely, 2^106878890 is an apocalyptic number.

106878890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106878890 is a deficient number, since it is larger than the sum of its proper divisors (85503130).

106878890 is a wasteful number, since it uses less digits than its factorization.

106878890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10687896.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 106878890 is about 10338.2247025299. The cubic root of 106878890 is about 474.5667554684.

The spelling of 106878890 in words is "one hundred six million, eight hundred seventy-eight thousand, eight hundred ninety".