8345672 has 8 divisors (see below), whose sum is σ = 15648150. Its totient is φ = 4172832.

The previous prime is 8345669. The next prime is 8345723. The reversal of 8345672 is 2765438.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4605316 + 3740356 = 2146^2 + 1934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×8345672² = 139300482263168, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521597 + ... + 521612.

Almost surely, 2^8345672 is an apocalyptic number.

It is an amenable number.

8345672 is a deficient number, since it is larger than the sum of its proper divisors (7302478).

8345672 is a wasteful number, since it uses less digits than its factorization.

8345672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043215 (or 1043211 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 8345672 is about 2888.8876752134. The cubic root of 8345672 is about 202.8400788586.

The spelling of 8345672 in words is "eight million, three hundred forty-five thousand, six hundred seventy-two".