8771428 has 6 divisors (see below), whose sum is σ = 15350006. Its totient is φ = 4385712.

The previous prime is 8771423. The next prime is 8771429. The reversal of 8771428 is 8241778.

8771428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5560164 + 3211264 = 2358^2 + 1792^2 .

It is not an unprimeable number, because it can be changed into a prime (8771423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096425 + ... + 1096432.

Almost surely, 2^8771428 is an apocalyptic number.

It is an amenable number.

8771428 is a deficient number, since it is larger than the sum of its proper divisors (6578578).

8771428 is a wasteful number, since it uses less digits than its factorization.

8771428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192861 (or 2192859 counting only the distinct ones).

The product of its digits is 25088, while the sum is 37.

The square root of 8771428 is about 2961.6596698473. The cubic root of 8771428 is about 206.2323391061.

It can be divided in two parts, 877142 and 8, that added together give a triangular number (877150 = T₁₃₂₄).

The spelling of 8771428 in words is "eight million, seven hundred seventy-one thousand, four hundred twenty-eight".