20898674 has 12 divisors (see below), whose sum is σ = 32771886. Its totient is φ = 9994512.

The previous prime is 20898667. The next prime is 20898677. The reversal of 20898674 is 47689802.

It can be written as a sum of positive squares in only one way, i.e., 19298449 + 1600225 = 4393^2 + 1265^2 .

It is not an unprimeable number, because it can be changed into a prime (20898677) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8819 + ... + 10934.

Almost surely, 2^20898674 is an apocalyptic number.

20898674 is a deficient number, since it is larger than the sum of its proper divisors (11873212).

20898674 is a wasteful number, since it uses less digits than its factorization.

20898674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19801 (or 19778 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 20898674 is about 4571.5067537957. The cubic root of 20898674 is about 275.4479706930.

The spelling of 20898674 in words is "twenty million, eight hundred ninety-eight thousand, six hundred seventy-four".