20000698 has 4 divisors (see below), whose sum is σ = 30001050. Its totient is φ = 10000348.

The previous prime is 20000693. The next prime is 20000707. The reversal of 20000698 is 89600002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89600002 = 2 ⋅44800001.

It can be written as a sum of positive squares in only one way, i.e., 18088009 + 1912689 = 4253^2 + 1383^2 .

It is not an unprimeable number, because it can be changed into a prime (20000693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000173 + ... + 5000176.

Almost surely, 2^20000698 is an apocalyptic number.

20000698 is a deficient number, since it is larger than the sum of its proper divisors (10000352).

20000698 is a wasteful number, since it uses less digits than its factorization.

20000698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000351.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20000698 is about 4472.2139930911. The cubic root of 20000698 is about 271.4449193952. Note that the first 3 decimals are identical.

The spelling of 20000698 in words is "twenty million, six hundred ninety-eight", and thus it is an aban number.