71404117 has 4 divisors (see below), whose sum is σ = 73333996. Its totient is φ = 69474240.

The previous prime is 71404103. The next prime is 71404127. The reversal of 71404117 is 71140417.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28291761 + 43112356 = 5319^2 + 6566^2 .

It is a cyclic number.

It is not a de Polignac number, because 71404117 - 2¹¹ = 71402069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71404091 and 71404100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71404127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964884 + ... + 964957.

It is an arithmetic number, because the mean of its divisors is an integer number (18333499).

Almost surely, 2^71404117 is an apocalyptic number.

It is an amenable number.

71404117 is a deficient number, since it is larger than the sum of its proper divisors (1929879).

71404117 is a wasteful number, since it uses less digits than its factorization.

71404117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929878.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 71404117 is about 8450.0956799317. The cubic root of 71404117 is about 414.8659110999.

The spelling of 71404117 in words is "seventy-one million, four hundred four thousand, one hundred seventeen".