402693 has 8 divisors (see below), whose sum is σ = 540000. Its totient is φ = 266928.

The previous prime is 402691. The next prime is 402697. The reversal of 402693 is 396204.

402693 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 402693 - 2¹ = 402691 is a prime.

402693 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402691) 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, 558 + ... + 1056.

It is an arithmetic number, because the mean of its divisors is an integer number (67500).

2⁴⁰²⁶⁹³ is an apocalyptic number.

It is an amenable number.

402693 is a deficient number, since it is larger than the sum of its proper divisors (137307).

402693 is a wasteful number, since it uses less digits than its factorization.

402693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 402693 is about 634.5809641015. The cubic root of 402693 is about 73.8456118917.

Adding to 402693 its reverse (396204), we get a palindrome (798897).

The spelling of 402693 in words is "four hundred two thousand, six hundred ninety-three".