776406 has 8 divisors (see below), whose sum is σ = 1552824. Its totient is φ = 258800.

The previous prime is 776401. The next prime is 776429. The reversal of 776406 is 604677.

It is a sphenic number, since it is the product of 3 distinct primes.

776406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (776401) by changing a digit.

776406 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 3 ways as a sum of consecutive naturals, for example, 64695 + ... + 64706.

It is an arithmetic number, because the mean of its divisors is an integer number (194103).

2⁷⁷⁶⁴⁰⁶ is an apocalyptic number.

776406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

776406 is a wasteful number, since it uses less digits than its factorization.

776406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129406.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 776406 is about 881.1390355670. The cubic root of 776406 is about 91.9100412404.

The spelling of 776406 in words is "seven hundred seventy-six thousand, four hundred six".