71497 has 8 divisors (see below), whose sum is σ = 77760. Its totient is φ = 65520.

The previous prime is 71483. The next prime is 71503. The reversal of 71497 is 79417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71497 - 2¹⁵ = 38729 is a prime.

It is a super-2 number, since 2×71497² = 10223642018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972 + ... + 1042.

It is an arithmetic number, because the mean of its divisors is an integer number (9720).

2⁷¹⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

71497 is a deficient number, since it is larger than the sum of its proper divisors (6263).

71497 is a wasteful number, since it uses less digits than its factorization.

71497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143.

The product of its digits is 1764, while the sum is 28.

The square root of 71497 is about 267.3892294016. The cubic root of 71497 is about 41.5045720032.

The spelling of 71497 in words is "seventy-one thousand, four hundred ninety-seven".