71404111 has 4 divisors (see below), whose sum is σ = 72469912. Its totient is φ = 70338312.

The previous prime is 71404103. The next prime is 71404127. The reversal of 71404111 is 11140417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11140417 = 263 ⋅42359.

It is a cyclic number.

It is not a de Polignac number, because 71404111 - 2³ = 71404103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71404141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532800 + ... + 532933.

It is an arithmetic number, because the mean of its divisors is an integer number (18117478).

Almost surely, 2^71404111 is an apocalyptic number.

71404111 is a deficient number, since it is larger than the sum of its proper divisors (1065801).

71404111 is a wasteful number, since it uses less digits than its factorization.

71404111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065800.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 71404111 is about 8450.0953249061. The cubic root of 71404111 is about 414.8658994796.

Adding to 71404111 its reverse (11140417), we get a palindrome (82544528).

The spelling of 71404111 in words is "seventy-one million, four hundred four thousand, one hundred eleven".