20747037 has 8 divisors (see below), whose sum is σ = 27758304. Its totient is φ = 13783568.

The previous prime is 20747011. The next prime is 20747053. The reversal of 20747037 is 73074702.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20747037 - 2¹⁰ = 20746013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20746995 and 20747013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20747087) 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 7 ways as a sum of consecutive naturals, for example, 10923 + ... + 12680.

It is an arithmetic number, because the mean of its divisors is an integer number (3469788).

Almost surely, 2^20747037 is an apocalyptic number.

It is an amenable number.

20747037 is a deficient number, since it is larger than the sum of its proper divisors (7011267).

20747037 is a wasteful number, since it uses less digits than its factorization.

20747037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23899.

The product of its (nonzero) digits is 8232, while the sum is 30.

The square root of 20747037 is about 4554.8915464586. The cubic root of 20747037 is about 274.7801526657.

The spelling of 20747037 in words is "twenty million, seven hundred forty-seven thousand, thirty-seven".