8757428 has 6 divisors (see below), whose sum is σ = 15325506. Its totient is φ = 4378712.

The previous prime is 8757409. The next prime is 8757473. The reversal of 8757428 is 8247578.

It can be written as a sum of positive squares in only one way, i.e., 7907344 + 850084 = 2812^2 + 922^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094675 + ... + 1094682.

It is an arithmetic number, because the mean of its divisors is an integer number (2554251).

Almost surely, 2^8757428 is an apocalyptic number.

It is an amenable number.

8757428 is a deficient number, since it is larger than the sum of its proper divisors (6568078).

8757428 is a wasteful number, since it uses less digits than its factorization.

8757428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189361 (or 2189359 counting only the distinct ones).

The product of its digits is 125440, while the sum is 41.

The square root of 8757428 is about 2959.2951863577. The cubic root of 8757428 is about 206.1225587975.

The spelling of 8757428 in words is "eight million, seven hundred fifty-seven thousand, four hundred twenty-eight".