71045398 has 4 divisors (see below), whose sum is σ = 106568100. Its totient is φ = 35522698.

The previous prime is 71045357. The next prime is 71045449. The reversal of 71045398 is 89354017.

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

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, 17761348 + ... + 17761351.

It is an arithmetic number, because the mean of its divisors is an integer number (26642025).

Almost surely, 2^71045398 is an apocalyptic number.

71045398 is a deficient number, since it is larger than the sum of its proper divisors (35522702).

71045398 is a wasteful number, since it uses less digits than its factorization.

71045398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35522701.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 71045398 is about 8428.8432183782. The cubic root of 71045398 is about 414.1700119339.

The spelling of 71045398 in words is "seventy-one million, forty-five thousand, three hundred ninety-eight".