7698938 has 16 divisors (see below), whose sum is σ = 12493320. Its totient is φ = 3537216.

The previous prime is 7698937. The next prime is 7698961. The reversal of 7698938 is 8398967.

It can be written as a sum of positive squares in 4 ways, for example, as 3869089 + 3829849 = 1967^2 + 1957^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7698931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6668 + ... + 7736.

Almost surely, 2^7698938 is an apocalyptic number.

7698938 is a deficient number, since it is larger than the sum of its proper divisors (4794382).

7698938 is a wasteful number, since it uses less digits than its factorization.

7698938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361.

The product of its digits is 653184, while the sum is 50.

The square root of 7698938 is about 2774.6960193866. The cubic root of 7698938 is about 197.4590034011.

The spelling of 7698938 in words is "seven million, six hundred ninety-eight thousand, nine hundred thirty-eight".