5388778 has 4 divisors (see below), whose sum is σ = 8083170. Its totient is φ = 2694388.

The previous prime is 5388769. The next prime is 5388797. The reversal of 5388778 is 8778835.

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

It can be written as a sum of positive squares in only one way, i.e., 5349969 + 38809 = 2313^2 + 197^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1347193 + ... + 1347196.

Almost surely, 2^5388778 is an apocalyptic number.

5388778 is a deficient number, since it is larger than the sum of its proper divisors (2694392).

5388778 is a wasteful number, since it uses less digits than its factorization.

5388778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694391.

The product of its digits is 376320, while the sum is 46.

The square root of 5388778 is about 2321.3741619997. The cubic root of 5388778 is about 175.3194491681.

It can be divided in two parts, 538 and 8778, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 5388778 in words is "five million, three hundred eighty-eight thousand, seven hundred seventy-eight".