106491998 has 16 divisors (see below), whose sum is σ = 168704640. Its totient is φ = 50275800.

The previous prime is 106491997. The next prime is 106492033. The reversal of 106491998 is 899194601.

It is a super-2 number, since 2×106491998² = 22681091276064008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106491997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7313 + ... + 16323.

It is an arithmetic number, because the mean of its divisors is an integer number (10544040).

Almost surely, 2^106491998 is an apocalyptic number.

106491998 is a deficient number, since it is larger than the sum of its proper divisors (62212642).

106491998 is a wasteful number, since it uses less digits than its factorization.

106491998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9343.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 106491998 is about 10319.4960148255. The cubic root of 106491998 is about 473.9934334162.

The spelling of 106491998 in words is "one hundred six million, four hundred ninety-one thousand, nine hundred ninety-eight".