106640858 has 4 divisors (see below), whose sum is σ = 159961290. Its totient is φ = 53320428.

The previous prime is 106640843. The next prime is 106640867. The reversal of 106640858 is 858046601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53831569 + 52809289 = 7337^2 + 7267^2 .

It is a super-2 number, since 2×106640858² = 22744545189952328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26660213 + ... + 26660216.

Almost surely, 2^106640858 is an apocalyptic number.

106640858 is a deficient number, since it is larger than the sum of its proper divisors (53320432).

106640858 is an equidigital number, since it uses as much as digits as its factorization.

106640858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53320431.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 106640858 is about 10326.7060575965. The cubic root of 106640858 is about 474.2141880660.

The spelling of 106640858 in words is "one hundred six million, six hundred forty thousand, eight hundred fifty-eight".