71329797 has 24 divisors (see below), whose sum is σ = 128456640. Its totient is φ = 37054080.

The previous prime is 71329751. The next prime is 71329799. The reversal of 71329797 is 79792317.

It is not a de Polignac number, because 71329797 - 2⁷ = 71329669 is a prime.

It is a super-2 number, since 2×71329797² = 10175879880122418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71329799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50772 + ... + 52157.

It is an arithmetic number, because the mean of its divisors is an integer number (5352360).

Almost surely, 2^71329797 is an apocalyptic number.

71329797 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

71329797 is a deficient number, since it is larger than the sum of its proper divisors (57126843).

71329797 is a wasteful number, since it uses less digits than its factorization.

71329797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102953 (or 102950 counting only the distinct ones).

The product of its digits is 166698, while the sum is 45.

The square root of 71329797 is about 8445.6969517027. The cubic root of 71329797 is about 414.7219252939.

The spelling of 71329797 in words is "seventy-one million, three hundred twenty-nine thousand, seven hundred ninety-seven".