20600978 has 8 divisors (see below), whose sum is σ = 32527920. Its totient is φ = 9758340.

The previous prime is 20600977. The next prime is 20601023. The reversal of 20600978 is 87900602.

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

It is not an unprimeable number, because it can be changed into a prime (20600977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271028 + ... + 271103.

It is an arithmetic number, because the mean of its divisors is an integer number (4065990).

Almost surely, 2^20600978 is an apocalyptic number.

20600978 is a deficient number, since it is larger than the sum of its proper divisors (11926942).

20600978 is a wasteful number, since it uses less digits than its factorization.

20600978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542152.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 20600978 is about 4538.8300254581. The cubic root of 20600978 is about 274.1338167462.

The spelling of 20600978 in words is "twenty million, six hundred thousand, nine hundred seventy-eight".