7128698 has 12 divisors (see below), whose sum is σ = 11052090. Its totient is φ = 3448440.

The previous prime is 7128697. The next prime is 7128701. The reversal of 7128698 is 8968217.

It can be written as a sum of positive squares in only one way, i.e., 6620329 + 508369 = 2573^2 + 713^2 .

It is not an unprimeable number, because it can be changed into a prime (7128691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68 + ... + 3776.

Almost surely, 2^7128698 is an apocalyptic number.

7128698 is a deficient number, since it is larger than the sum of its proper divisors (3923392).

7128698 is a wasteful number, since it uses less digits than its factorization.

7128698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773 (or 3742 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 7128698 is about 2669.9621720167. The cubic root of 7128698 is about 192.4583414661.

The spelling of 7128698 in words is "seven million, one hundred twenty-eight thousand, six hundred ninety-eight".