5639977 has 4 divisors (see below), whose sum is σ = 6445696. Its totient is φ = 4834260.

The previous prime is 5639969. The next prime is 5639981. The reversal of 5639977 is 7799365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5639977 - 2³ = 5639969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5639927) by changing a digit.

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, 402849 + ... + 402862.

It is an arithmetic number, because the mean of its divisors is an integer number (1611424).

Almost surely, 2^5639977 is an apocalyptic number.

It is an amenable number.

5639977 is a deficient number, since it is larger than the sum of its proper divisors (805719).

5639977 is an equidigital number, since it uses as much as digits as its factorization.

5639977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805718.

The product of its digits is 357210, while the sum is 46.

The square root of 5639977 is about 2374.8635750291. The cubic root of 5639977 is about 178.0023670939.

The spelling of 5639977 in words is "five million, six hundred thirty-nine thousand, nine hundred seventy-seven".