71477 has 4 divisors (see below), whose sum is σ = 81696. Its totient is φ = 61260.

The previous prime is 71473. The next prime is 71479. The reversal of 71477 is 77417.

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 71477 - 2² = 71473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 71477.

It is not an unprimeable number, because it can be changed into a prime (71471) 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, 5099 + ... + 5112.

It is an arithmetic number, because the mean of its divisors is an integer number (20424).

2⁷¹⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

71477 is a deficient number, since it is larger than the sum of its proper divisors (10219).

71477 is a wasteful number, since it uses less digits than its factorization.

71477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10218.

The product of its digits is 1372, while the sum is 26.

The square root of 71477 is about 267.3518281217. The cubic root of 71477 is about 41.5007015897.

The spelling of 71477 in words is "seventy-one thousand, four hundred seventy-seven", and thus it is an iban number.