365997 has 8 divisors (see below), whose sum is σ = 513760. Its totient is φ = 231120.

The previous prime is 365983. The next prime is 366001. The reversal of 365997 is 799563.

365997 = 134² + 135² + ... + 151².

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

It is not a de Polignac number, because 365997 - 2⁶ = 365933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3154 + ... + 3267.

It is an arithmetic number, because the mean of its divisors is an integer number (64220).

2³⁶⁵⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

365997 is a deficient number, since it is larger than the sum of its proper divisors (147763).

365997 is a wasteful number, since it uses less digits than its factorization.

365997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443.

The product of its digits is 51030, while the sum is 39.

The square root of 365997 is about 604.9768590616. The cubic root of 365997 is about 71.5307055103.

The spelling of 365997 in words is "three hundred sixty-five thousand, nine hundred ninety-seven".