20930612 has 12 divisors (see below), whose sum is σ = 36862980. Its totient is φ = 10398336.

The previous prime is 20930603. The next prime is 20930617. The reversal of 20930612 is 21603902.

It can be written as a sum of positive squares in 2 ways, for example, as 10407076 + 10523536 = 3226^2 + 3244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20930617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16037 + ... + 17292.

It is an arithmetic number, because the mean of its divisors is an integer number (3071915).

Almost surely, 2^20930612 is an apocalyptic number.

It is an amenable number.

20930612 is a deficient number, since it is larger than the sum of its proper divisors (15932368).

20930612 is a wasteful number, since it uses less digits than its factorization.

20930612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33490 (or 33488 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 20930612 is about 4574.9985792348. The cubic root of 20930612 is about 275.5882153113.

The spelling of 20930612 in words is "twenty million, nine hundred thirty thousand, six hundred twelve".