945977 has 4 divisors (see below), whose sum is σ = 947940. Its totient is φ = 944016.

The previous prime is 945961. The next prime is 945983. The reversal of 945977 is 779549.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 779549 = 29 ⋅26881.

It can be written as a sum of positive squares in 2 ways, for example, as 32041 + 913936 = 179^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 945977 - 2⁴ = 945961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945907) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 299 + ... + 1407.

It is an arithmetic number, because the mean of its divisors is an integer number (236985).

2⁹⁴⁵⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

945977 is a deficient number, since it is larger than the sum of its proper divisors (1963).

945977 is a wasteful number, since it uses less digits than its factorization.

945977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962.

The product of its digits is 79380, while the sum is 41.

The square root of 945977 is about 972.6134895219. The cubic root of 945977 is about 98.1657959836.

The spelling of 945977 in words is "nine hundred forty-five thousand, nine hundred seventy-seven".