786401 has 12 divisors (see below), whose sum is σ = 998640. Its totient is φ = 612360.

The previous prime is 786371. The next prime is 786407. The reversal of 786401 is 104687.

It is not a de Polignac number, because 786401 - 2⁶ = 786337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (786407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191 + ... + 1268.

It is an arithmetic number, because the mean of its divisors is an integer number (83220).

2⁷⁸⁶⁴⁰¹ is an apocalyptic number.

It is an amenable number.

786401 is a deficient number, since it is larger than the sum of its proper divisors (212239).

786401 is a wasteful number, since it uses less digits than its factorization.

786401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 786401 is about 886.7925349257. The cubic root of 786401 is about 92.3027596545.

The spelling of 786401 in words is "seven hundred eighty-six thousand, four hundred one".