8343428 has 6 divisors (see below), whose sum is σ = 14601006. Its totient is φ = 4171712.

The previous prime is 8343407. The next prime is 8343431. The reversal of 8343428 is 8243438.

It can be written as a sum of positive squares in only one way, i.e., 8111104 + 232324 = 2848^2 + 482^2 .

It is a super-2 number, since 2×8343428² = 139225581582368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8343394 and 8343403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042925 + ... + 1042932.

It is an arithmetic number, because the mean of its divisors is an integer number (2433501).

Almost surely, 2^8343428 is an apocalyptic number.

It is an amenable number.

8343428 is a deficient number, since it is larger than the sum of its proper divisors (6257578).

8343428 is a wasteful number, since it uses less digits than its factorization.

8343428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085861 (or 2085859 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 8343428 is about 2888.4992643239. The cubic root of 8343428 is about 202.8218972215.

The spelling of 8343428 in words is "eight million, three hundred forty-three thousand, four hundred twenty-eight".