977345 has 4 divisors (see below), whose sum is σ = 1172820. Its totient is φ = 781872.

The previous prime is 977323. The next prime is 977351. The reversal of 977345 is 543779.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152881 + 824464 = 391^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 977345 - 2¹⁴ = 960961 is a prime.

It is a d-powerful number, because it can be written as 9² + 7⁶ + 3⁹ + 7⁷ + 4⁷ + 5 .

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 977345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97730 + ... + 97739.

It is an arithmetic number, because the mean of its divisors is an integer number (293205).

2⁹⁷⁷³⁴⁵ is an apocalyptic number.

It is an amenable number.

977345 is a deficient number, since it is larger than the sum of its proper divisors (195475).

977345 is a wasteful number, since it uses less digits than its factorization.

977345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195474.

The product of its digits is 26460, while the sum is 35.

The square root of 977345 is about 988.6076066873. The cubic root of 977345 is about 99.2390576883.

The spelling of 977345 in words is "nine hundred seventy-seven thousand, three hundred forty-five".