403973 has 8 divisors (see below), whose sum is σ = 423360. Its totient is φ = 385120.

The previous prime is 403969. The next prime is 403979. The reversal of 403973 is 379304.

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

It is a cyclic number.

It is not a de Polignac number, because 403973 - 2² = 403969 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 (403979) 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 7 ways as a sum of consecutive naturals, for example, 2336 + ... + 2502.

It is an arithmetic number, because the mean of its divisors is an integer number (52920).

2⁴⁰³⁹⁷³ is an apocalyptic number.

It is an amenable number.

403973 is a deficient number, since it is larger than the sum of its proper divisors (19387).

403973 is a wasteful number, since it uses less digits than its factorization.

403973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 403973 is about 635.5887034868. The cubic root of 403973 is about 73.9237710271.

The spelling of 403973 in words is "four hundred three thousand, nine hundred seventy-three".