5645377 has 4 divisors (see below), whose sum is σ = 5977476. Its totient is φ = 5313280.

The previous prime is 5645347. The next prime is 5645383. The reversal of 5645377 is 7735465.

It is a Cunningham number, because it is equal to 2376²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7735465 = 5 ⋅1547093.

It can be written as a sum of positive squares in 2 ways, for example, as 4393216 + 1252161 = 2096^2 + 1119^2 .

It is a cyclic number.

It is not a de Polignac number, because 5645377 - 2¹¹ = 5643329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5645347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166024 + ... + 166057.

It is an arithmetic number, because the mean of its divisors is an integer number (1494369).

Almost surely, 2^5645377 is an apocalyptic number.

It is an amenable number.

5645377 is a deficient number, since it is larger than the sum of its proper divisors (332099).

5645377 is a wasteful number, since it uses less digits than its factorization.

5645377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332098.

The product of its digits is 88200, while the sum is 37.

The square root of 5645377 is about 2376.0002104377. Note that the first 3 decimals coincide. The cubic root of 5645377 is about 178.0591584705.

The spelling of 5645377 in words is "five million, six hundred forty-five thousand, three hundred seventy-seven".