20010699 has 8 divisors (see below), whose sum is σ = 29645520. Its totient is φ = 13340448.

The previous prime is 20010691. The next prime is 20010701. The reversal of 20010699 is 99601002.

It is a happy number.

It is not a de Polignac number, because 20010699 - 2³ = 20010691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 741137 = 20010699 / (2 + 0 + 0 + 1 + 0 + 6 + 9 + 9).

It is not an unprimeable number, because it can be changed into a prime (20010691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370542 + ... + 370595.

It is an arithmetic number, because the mean of its divisors is an integer number (3705690).

Almost surely, 2^20010699 is an apocalyptic number.

20010699 is a deficient number, since it is larger than the sum of its proper divisors (9634821).

20010699 is an equidigital number, since it uses as much as digits as its factorization.

20010699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741146 (or 741140 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 20010699 is about 4473.3319796322. The cubic root of 20010699 is about 271.4901556212.

The spelling of 20010699 in words is "twenty million, ten thousand, six hundred ninety-nine".