20699054 has 8 divisors (see below), whose sum is σ = 31068360. Its totient is φ = 10342936.

The previous prime is 20699053. The next prime is 20699059. The reversal of 20699054 is 45099602.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20699051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3152 + ... + 7164.

It is an arithmetic number, because the mean of its divisors is an integer number (3883545).

Almost surely, 2^20699054 is an apocalyptic number.

20699054 is a deficient number, since it is larger than the sum of its proper divisors (10369306).

20699054 is a wasteful number, since it uses less digits than its factorization.

20699054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6594.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 20699054 is about 4549.6213029218. The cubic root of 20699054 is about 274.5681552678.

The spelling of 20699054 in words is "twenty million, six hundred ninety-nine thousand, fifty-four".