788401 has 4 divisors (see below), whose sum is σ = 795492. Its totient is φ = 781312.

The previous prime is 788399. The next prime is 788413. The reversal of 788401 is 104887.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104887 = 53 ⋅1979.

It can be written as a sum of positive squares in 2 ways, for example, as 67600 + 720801 = 260^2 + 849^2 .

It is a cyclic number.

It is not a de Polignac number, because 788401 - 2¹ = 788399 is a prime.

It is a super-2 number, since 2×788401² = 1243152273602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 788401.

It is not an unprimeable number, because it can be changed into a prime (788701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3376 + ... + 3601.

It is an arithmetic number, because the mean of its divisors is an integer number (198873).

2⁷⁸⁸⁴⁰¹ is an apocalyptic number.

It is an amenable number.

788401 is a deficient number, since it is larger than the sum of its proper divisors (7091).

788401 is a wasteful number, since it uses less digits than its factorization.

788401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7090.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 788401 is about 887.9194783312. The cubic root of 788401 is about 92.3809425162.

The spelling of 788401 in words is "seven hundred eighty-eight thousand, four hundred one".