20930073 has 8 divisors (see below), whose sum is σ = 28380000. Its totient is φ = 13716768.

The previous prime is 20930057. The next prime is 20930093. The reversal of 20930073 is 37003902.

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

It is not a de Polignac number, because 20930073 - 2⁴ = 20930057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20930033) 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, 58948 + ... + 59301.

It is an arithmetic number, because the mean of its divisors is an integer number (3547500).

Almost surely, 2^20930073 is an apocalyptic number.

It is an amenable number.

20930073 is a deficient number, since it is larger than the sum of its proper divisors (7449927).

20930073 is a wasteful number, since it uses less digits than its factorization.

20930073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118311.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 20930073 is about 4574.9396717334. The cubic root of 20930073 is about 275.5858496642.

Adding to 20930073 its reverse (37003902), we get a palindrome (57933975).

The spelling of 20930073 in words is "twenty million, nine hundred thirty thousand, seventy-three".