20929101 has 8 divisors (see below), whose sum is σ = 27928704. Its totient is φ = 13941120.

The previous prime is 20929099. The next prime is 20929109. The reversal of 20929101 is 10192902.

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

It is not a de Polignac number, because 20929101 - 2¹ = 20929099 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20929109) 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, 3036 + ... + 7146.

It is an arithmetic number, because the mean of its divisors is an integer number (3491088).

Almost surely, 2^20929101 is an apocalyptic number.

It is an amenable number.

20929101 is a deficient number, since it is larger than the sum of its proper divisors (6999603).

20929101 is a wasteful number, since it uses less digits than its factorization.

20929101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5811.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 20929101 is about 4574.8334395910. The cubic root of 20929101 is about 275.5815834967.

The spelling of 20929101 in words is "twenty million, nine hundred twenty-nine thousand, one hundred one".