977406 has 8 divisors (see below), whose sum is σ = 1954824. Its totient is φ = 325800.

The previous prime is 977369. The next prime is 977407. The reversal of 977406 is 604779.

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

977406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977407) by changing a digit.

977406 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, 81445 + ... + 81456.

It is an arithmetic number, because the mean of its divisors is an integer number (244353).

2⁹⁷⁷⁴⁰⁶ is an apocalyptic number.

977406 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.

977406 is a wasteful number, since it uses less digits than its factorization.

977406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162906.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 977406 is about 988.6384576780. The cubic root of 977406 is about 99.2411222805.

It can be divided in two parts, 97 and 7406, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 977406 in words is "nine hundred seventy-seven thousand, four hundred six".