676401 has 16 divisors (see below), whose sum is σ = 998400. Its totient is φ = 403920.

The previous prime is 676391. The next prime is 676409. The reversal of 676401 is 104676.

It is not a de Polignac number, because 676401 - 2⁶ = 676337 is a prime.

It is a Curzon number.

676401 is a lucky number.

It is a nialpdrome in base 11.

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 676401.

It is not an unprimeable number, because it can be changed into a prime (676409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3300 + ... + 3498.

It is an arithmetic number, because the mean of its divisors is an integer number (62400).

2⁶⁷⁶⁴⁰¹ is an apocalyptic number.

It is an amenable number.

676401 is a deficient number, since it is larger than the sum of its proper divisors (321999).

676401 is a wasteful number, since it uses less digits than its factorization.

676401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 676401 is about 822.4360157483. The cubic root of 676401 is about 87.7811798191.

The spelling of 676401 in words is "six hundred seventy-six thousand, four hundred one".