9428657 has 4 divisors (see below), whose sum is σ = 10775616. Its totient is φ = 8081700.

The previous prime is 9428641. The next prime is 9428669. The reversal of 9428657 is 7568249.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7568249 = 13 ⋅582173.

It is a cyclic number.

It is not a de Polignac number, because 9428657 - 2⁴ = 9428641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9428357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673469 + ... + 673482.

It is an arithmetic number, because the mean of its divisors is an integer number (2693904).

Almost surely, 2^9428657 is an apocalyptic number.

It is an amenable number.

9428657 is a deficient number, since it is larger than the sum of its proper divisors (1346959).

9428657 is a wasteful number, since it uses less digits than its factorization.

9428657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346958.

The product of its digits is 120960, while the sum is 41.

The square root of 9428657 is about 3070.6118282844. The cubic root of 9428657 is about 211.2596774391.

The spelling of 9428657 in words is "nine million, four hundred twenty-eight thousand, six hundred fifty-seven".