365671 has 4 divisors (see below), whose sum is σ = 375592. Its totient is φ = 355752.

The previous prime is 365669. The next prime is 365683. The reversal of 365671 is 176563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176563 = 383 ⋅461.

It is a cyclic number.

It is not a de Polignac number, because 365671 - 2¹ = 365669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365611) 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, 4905 + ... + 4978.

It is an arithmetic number, because the mean of its divisors is an integer number (93898).

2³⁶⁵⁶⁷¹ is an apocalyptic number.

365671 is a deficient number, since it is larger than the sum of its proper divisors (9921).

365671 is an equidigital number, since it uses as much as digits as its factorization.

365671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9920.

The product of its digits is 3780, while the sum is 28.

The square root of 365671 is about 604.7073672447. The cubic root of 365671 is about 71.5094613134.

The spelling of 365671 in words is "three hundred sixty-five thousand, six hundred seventy-one".