783904 has 48 divisors (see below), whose sum is σ = 1796256. Its totient is φ = 332800.

The previous prime is 783877. The next prime is 783931. The reversal of 783904 is 409387.

It is a happy number.

783904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (783877) and next prime (783931).

It is a super-2 number, since 2×783904² = 1229010962432, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

783904 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5919 + ... + 6049.

It is an arithmetic number, because the mean of its divisors is an integer number (37422).

2⁷⁸³⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 783904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (898128).

783904 is an abundant number, since it is smaller than the sum of its proper divisors (1012352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

783904 is a wasteful number, since it uses less digits than its factorization.

783904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 783904 is about 885.3835327134. The cubic root of 783904 is about 92.2049620661.

The spelling of 783904 in words is "seven hundred eighty-three thousand, nine hundred four".