977394 has 32 divisors (see below), whose sum is σ = 2177280. Its totient is φ = 290000.

The previous prime is 977369. The next prime is 977407. The reversal of 977394 is 493779.

977394 = 127² + 128² + ... + 170².

It is an unprimeable number.

977394 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3769 + ... + 4019.

It is an arithmetic number, because the mean of its divisors is an integer number (68040).

2⁹⁷⁷³⁹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 977394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088640).

977394 is an abundant number, since it is smaller than the sum of its proper divisors (1199886).

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

977394 is a wasteful number, since it uses less digits than its factorization.

977394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326.

The product of its digits is 47628, while the sum is 39.

The square root of 977394 is about 988.6323887067. The cubic root of 977394 is about 99.2407161380.

The spelling of 977394 in words is "nine hundred seventy-seven thousand, three hundred ninety-four".