20379799 has 8 divisors (see below), whose sum is σ = 23402880. Its totient is φ = 17551800.

The previous prime is 20379781. The next prime is 20379809. The reversal of 20379799 is 99797302.

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 20379799 - 2⁵ = 20379767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20379739) 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, 48547 + ... + 48964.

It is an arithmetic number, because the mean of its divisors is an integer number (2925360).

Almost surely, 2^20379799 is an apocalyptic number.

20379799 is a deficient number, since it is larger than the sum of its proper divisors (3023081).

20379799 is a wasteful number, since it uses less digits than its factorization.

20379799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97541.

The product of its (nonzero) digits is 214326, while the sum is 46.

The square root of 20379799 is about 4514.3990740740. The cubic root of 20379799 is about 273.1492204833.

The spelling of 20379799 in words is "twenty million, three hundred seventy-nine thousand, seven hundred ninety-nine".