5651878 has 4 divisors (see below), whose sum is σ = 8477820. Its totient is φ = 2825938.

The previous prime is 5651869. The next prime is 5651887. The reversal of 5651878 is 8781565.

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

It is an interprime number because it is at equal distance from previous prime (5651869) and next prime (5651887).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 5651878.

It is a congruent number.

It is an unprimeable 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 as a sum of consecutive naturals, namely, 1412968 + ... + 1412971.

It is an arithmetic number, because the mean of its divisors is an integer number (2119455).

Almost surely, 2^5651878 is an apocalyptic number.

5651878 is a deficient number, since it is larger than the sum of its proper divisors (2825942).

5651878 is a wasteful number, since it uses less digits than its factorization.

5651878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825941.

The product of its digits is 67200, while the sum is 40.

The square root of 5651878 is about 2377.3678722486. The cubic root of 5651878 is about 178.1274809545.

The spelling of 5651878 in words is "five million, six hundred fifty-one thousand, eight hundred seventy-eight".