71942918 has 4 divisors (see below), whose sum is σ = 107914380. Its totient is φ = 35971458.

The previous prime is 71942903. The next prime is 71942921. The reversal of 71942918 is 81924917.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81924917 = 199 ⋅411683.

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, 17985728 + ... + 17985731.

It is an arithmetic number, because the mean of its divisors is an integer number (26978595).

Almost surely, 2^71942918 is an apocalyptic number.

71942918 is a deficient number, since it is larger than the sum of its proper divisors (35971462).

71942918 is a wasteful number, since it uses less digits than its factorization.

71942918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35971461.

The product of its digits is 36288, while the sum is 41.

The square root of 71942918 is about 8481.9171181992. The cubic root of 71942918 is about 415.9067954098.

The spelling of 71942918 in words is "seventy-one million, nine hundred forty-two thousand, nine hundred eighteen".