71063497 has 4 divisors (see below), whose sum is σ = 71420800. Its totient is φ = 70706196.

The previous prime is 71063479. The next prime is 71063507. The reversal of 71063497 is 79436017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71063497 - 2¹¹ = 71061449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71063437) 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, 178353 + ... + 178750.

It is an arithmetic number, because the mean of its divisors is an integer number (17855200).

Almost surely, 2^71063497 is an apocalyptic number.

It is an amenable number.

71063497 is a deficient number, since it is larger than the sum of its proper divisors (357303).

71063497 is a wasteful number, since it uses less digits than its factorization.

71063497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357302.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 71063497 is about 8429.9167848799. The cubic root of 71063497 is about 414.2051792438.

The spelling of 71063497 in words is "seventy-one million, sixty-three thousand, four hundred ninety-seven".