20072667 has 8 divisors (see below), whose sum is σ = 26786880. Its totient is φ = 13370120.

The previous prime is 20072651. The next prime is 20072681. The reversal of 20072667 is 76627002.

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 20072667 - 2⁴ = 20072651 is a prime.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (20072617) 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, 2584 + ... + 6842.

It is an arithmetic number, because the mean of its divisors is an integer number (3348360).

Almost surely, 2^20072667 is an apocalyptic number.

20072667 is a deficient number, since it is larger than the sum of its proper divisors (6714213).

20072667 is a wasteful number, since it uses less digits than its factorization.

20072667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5833.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 20072667 is about 4480.2530062486. The cubic root of 20072667 is about 271.7701119511.

Adding to 20072667 its reverse (76627002), we get a palindrome (96699669).

The spelling of 20072667 in words is "twenty million, seventy-two thousand, six hundred sixty-seven".