71371797 has 16 divisors (see below), whose sum is σ = 115155072. Its totient is φ = 38384640.

The previous prime is 71371793. The next prime is 71371843. The reversal of 71371797 is 79717317.

It is not a de Polignac number, because 71371797 - 2² = 71371793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71371793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99604 + ... + 100317.

It is an arithmetic number, because the mean of its divisors is an integer number (7197192).

Almost surely, 2^71371797 is an apocalyptic number.

It is an amenable number.

71371797 is a deficient number, since it is larger than the sum of its proper divisors (43783275).

71371797 is a wasteful number, since it uses less digits than its factorization.

71371797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199948.

The product of its digits is 64827, while the sum is 42.

The square root of 71371797 is about 8448.1830590962. The cubic root of 71371797 is about 414.8033073810.

The spelling of 71371797 in words is "seventy-one million, three hundred seventy-one thousand, seven hundred ninety-seven".