20760487 has 8 divisors (see below), whose sum is σ = 22822272. Its totient is φ = 18727800.

The previous prime is 20760479. The next prime is 20760499. The reversal of 20760487 is 78406702.

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 20760487 - 2³ = 20760479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20761487) 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, 5763 + ... + 8644.

It is an arithmetic number, because the mean of its divisors is an integer number (2852784).

Almost surely, 2^20760487 is an apocalyptic number.

20760487 is the 2882-nd heptagonal number.

20760487 is a deficient number, since it is larger than the sum of its proper divisors (2061785).

20760487 is a wasteful number, since it uses less digits than its factorization.

20760487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14549.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 20760487 is about 4556.3677419629. The cubic root of 20760487 is about 274.8395184874.

The spelling of 20760487 in words is "twenty million, seven hundred sixty thousand, four hundred eighty-seven".