401797 has 4 divisors (see below), whose sum is σ = 438336. Its totient is φ = 365260.

The previous prime is 401773. The next prime is 401809. The reversal of 401797 is 797104.

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 401797 - 2⁷ = 401669 is a prime.

It is a super-2 number, since 2×401797² = 322881658418, which contains 22 as substring.

It is a Duffinian number.

401797 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18253 + ... + 18274.

It is an arithmetic number, because the mean of its divisors is an integer number (109584).

2⁴⁰¹⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

401797 is a deficient number, since it is larger than the sum of its proper divisors (36539).

401797 is a wasteful number, since it uses less digits than its factorization.

401797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36538.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 401797 is about 633.8745932754. The cubic root of 401797 is about 73.7908018981.

It can be divided in two parts, 40179 and 7, that added together give a triangular number (40186 = T₂₈₃).

The spelling of 401797 in words is "four hundred one thousand, seven hundred ninety-seven".