5729778 has 40 divisors (see below), whose sum is σ = 12993948. Its totient is φ = 1886976.

The previous prime is 5729767. The next prime is 5729797. The reversal of 5729778 is 8779275.

5729778 is a `hidden beast` number, since 572 + 9 + 7 + 78 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3470769 + 2259009 = 1863^2 + 1503^2 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18150 + ... + 18462.

Almost surely, 2^5729778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5729778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6496974).

5729778 is an abundant number, since it is smaller than the sum of its proper divisors (7264170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5729778 is a wasteful number, since it uses less digits than its factorization.

5729778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 431 counting only the distinct ones).

The product of its digits is 246960, while the sum is 45.

The square root of 5729778 is about 2393.6954693528. The cubic root of 5729778 is about 178.9421283326.

It can be divided in two parts, 572977 and 8, that added together give a triangular number (572985 = T₁₀₇₀).

The spelling of 5729778 in words is "five million, seven hundred twenty-nine thousand, seven hundred seventy-eight".