9770428 has 12 divisors (see below), whose sum is σ = 17304840. Its totient is φ = 4826192.

The previous prime is 9770401. The next prime is 9770441. The reversal of 9770428 is 8240779.

It is a happy number.

9770428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9770428² = 190922526606368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14383 + ... + 15046.

It is an arithmetic number, because the mean of its divisors is an integer number (1442070).

Almost surely, 2^9770428 is an apocalyptic number.

It is an amenable number.

9770428 is a deficient number, since it is larger than the sum of its proper divisors (7534412).

9770428 is a wasteful number, since it uses less digits than its factorization.

9770428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29516 (or 29514 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 9770428 is about 3125.7683855334. The cubic root of 9770428 is about 213.7820297863.

The spelling of 9770428 in words is "nine million, seven hundred seventy thousand, four hundred twenty-eight".