71899106 has 8 divisors (see below), whose sum is σ = 111327744. Its totient is φ = 34789860.

The previous prime is 71899099. The next prime is 71899123. The reversal of 71899106 is 60199817.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579770 + ... + 579893.

It is an arithmetic number, because the mean of its divisors is an integer number (13915968).

Almost surely, 2^71899106 is an apocalyptic number.

71899106 is a deficient number, since it is larger than the sum of its proper divisors (39428638).

71899106 is a wasteful number, since it uses less digits than its factorization.

71899106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159696.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 71899106 is about 8479.3340540399. The cubic root of 71899106 is about 415.8223515702.

The spelling of 71899106 in words is "seventy-one million, eight hundred ninety-nine thousand, one hundred six".