20486937 has 8 divisors (see below), whose sum is σ = 28054336. Its totient is φ = 13288752.

The previous prime is 20486933. The next prime is 20486953. The reversal of 20486937 is 73968402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20486937 - 2² = 20486933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20486895 and 20486904.

It is not an unprimeable number, because it can be changed into a prime (20486933) 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, 92173 + ... + 92394.

It is an arithmetic number, because the mean of its divisors is an integer number (3506792).

Almost surely, 2^20486937 is an apocalyptic number.

It is an amenable number.

20486937 is a deficient number, since it is larger than the sum of its proper divisors (7567399).

20486937 is a wasteful number, since it uses less digits than its factorization.

20486937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184607.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 20486937 is about 4526.2497721624. The cubic root of 20486937 is about 273.6270388747.

The spelling of 20486937 in words is "twenty million, four hundred eighty-six thousand, nine hundred thirty-seven".