71629 has 4 divisors (see below), whose sum is σ = 72576. Its totient is φ = 70684.

The previous prime is 71597. The next prime is 71633. The reversal of 71629 is 92617.

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 71629 - 2⁵ = 71597 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71699) 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, 349 + ... + 514.

It is an arithmetic number, because the mean of its divisors is an integer number (18144).

2⁷¹⁶²⁹ is an apocalyptic number.

It is an amenable number.

71629 is a deficient number, since it is larger than the sum of its proper divisors (947).

71629 is an equidigital number, since it uses as much as digits as its factorization.

71629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946.

The product of its digits is 756, while the sum is 25.

The square root of 71629 is about 267.6359467635. The cubic root of 71629 is about 41.5300986470.

The spelling of 71629 in words is "seventy-one thousand, six hundred twenty-nine".