369391 has 4 divisors (see below), whose sum is σ = 402984. Its totient is φ = 335800.

The previous prime is 369361. The next prime is 369407. The reversal of 369391 is 193963.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 369391 - 2⁷ = 369263 is a prime.

It is a Duffinian number.

369391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (369301) 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, 16780 + ... + 16801.

It is an arithmetic number, because the mean of its divisors is an integer number (100746).

2³⁶⁹³⁹¹ is an apocalyptic number.

369391 is a deficient number, since it is larger than the sum of its proper divisors (33593).

369391 is a wasteful number, since it uses less digits than its factorization.

369391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33592.

The product of its digits is 4374, while the sum is 31.

The square root of 369391 is about 607.7754519557. The cubic root of 369391 is about 71.7511341062.

The spelling of 369391 in words is "three hundred sixty-nine thousand, three hundred ninety-one".