106428878 has 4 divisors (see below), whose sum is σ = 159643320. Its totient is φ = 53214438.

The previous prime is 106428853. The next prime is 106428911. The reversal of 106428878 is 878824601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878824601 = 4789 ⋅183509.

It is a super-2 number, since 2×106428878² = 22654212144677768, which contains 22 as substring.

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, 26607218 + ... + 26607221.

It is an arithmetic number, because the mean of its divisors is an integer number (39910830).

Almost surely, 2^106428878 is an apocalyptic number.

106428878 is a deficient number, since it is larger than the sum of its proper divisors (53214442).

106428878 is an equidigital number, since it uses as much as digits as its factorization.

106428878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53214441.

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 106428878 is about 10316.4372726247. The cubic root of 106428878 is about 473.8997663517.

The spelling of 106428878 in words is "one hundred six million, four hundred twenty-eight thousand, eight hundred seventy-eight".