693878 has 4 divisors (see below), whose sum is σ = 1040820. Its totient is φ = 346938.

The previous prime is 693877. The next prime is 693881. The reversal of 693878 is 878396.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 693878.

It is not an unprimeable number, because it can be changed into a prime (693871) 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 as a sum of consecutive naturals, namely, 173468 + ... + 173471.

It is an arithmetic number, because the mean of its divisors is an integer number (260205).

2⁶⁹³⁸⁷⁸ is an apocalyptic number.

693878 is a deficient number, since it is larger than the sum of its proper divisors (346942).

693878 is a wasteful number, since it uses less digits than its factorization.

693878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346941.

The product of its digits is 72576, while the sum is 41.

The square root of 693878 is about 832.9933973328. The cubic root of 693878 is about 88.5307967340.

The spelling of 693878 in words is "six hundred ninety-three thousand, eight hundred seventy-eight".