20061699 has 8 divisors (see below), whose sum is σ = 30570240. Its totient is φ = 11463816.

The previous prime is 20061673. The next prime is 20061737. The reversal of 20061699 is 99616002.

It is a happy number.

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

It is not a de Polignac number, because 20061699 - 2⁹ = 20061187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20061199) 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, 477639 + ... + 477680.

It is an arithmetic number, because the mean of its divisors is an integer number (3821280).

Almost surely, 2^20061699 is an apocalyptic number.

20061699 is a deficient number, since it is larger than the sum of its proper divisors (10508541).

20061699 is an equidigital number, since it uses as much as digits as its factorization.

20061699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955329.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 20061699 is about 4479.0288009791. The cubic root of 20061699 is about 271.7206032059.

The spelling of 20061699 in words is "twenty million, sixty-one thousand, six hundred ninety-nine".