20763049 has 8 divisors (see below), whose sum is σ = 21415680. Its totient is φ = 20119296.

The previous prime is 20763047. The next prime is 20763091. The reversal of 20763049 is 94036702.

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 20763049 - 2¹ = 20763047 is a prime.

It is a super-2 number, since 2×20763049² = 862208407552802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20763049.

It is not an unprimeable number, because it can be changed into a prime (20763047) 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, 2697 + ... + 6985.

It is an arithmetic number, because the mean of its divisors is an integer number (2676960).

Almost surely, 2^20763049 is an apocalyptic number.

It is an amenable number.

20763049 is a deficient number, since it is larger than the sum of its proper divisors (652631).

20763049 is a wasteful number, since it uses less digits than its factorization.

20763049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 20763049 is about 4556.6488782876. The cubic root of 20763049 is about 274.8508237758.

The spelling of 20763049 in words is "twenty million, seven hundred sixty-three thousand, forty-nine".