106691403 has 64 divisors (see below), whose sum is σ = 187658240. Its totient is φ = 52348032.

The previous prime is 106691401. The next prime is 106691407. The reversal of 106691403 is 304196601.

It is not a de Polignac number, because 106691403 - 2¹ = 106691401 is a prime.

It is a super-2 number, since 2×106691403² = 22766110948216818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106691401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 347376 + ... + 347682.

It is an arithmetic number, because the mean of its divisors is an integer number (2932160).

Almost surely, 2^106691403 is an apocalyptic number.

106691403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

106691403 is a deficient number, since it is larger than the sum of its proper divisors (80966837).

106691403 is a wasteful number, since it uses less digits than its factorization.

106691403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 106691403 is about 10329.1530630541. The cubic root of 106691403 is about 474.2890979728.

The spelling of 106691403 in words is "one hundred six million, six hundred ninety-one thousand, four hundred three".