20067007 has 4 divisors (see below), whose sum is σ = 20079576. Its totient is φ = 20054440.

The previous prime is 20067001. The next prime is 20067029. The reversal of 20067007 is 70076002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20067007 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 (20067001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3469 + ... + 7222.

It is an arithmetic number, because the mean of its divisors is an integer number (5019894).

Almost surely, 2^20067007 is an apocalyptic number.

20067007 is a deficient number, since it is larger than the sum of its proper divisors (12569).

20067007 is a wasteful number, since it uses less digits than its factorization.

20067007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12568.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 20067007 is about 4479.6213009584. The cubic root of 20067007 is about 271.7445653801.

The spelling of 20067007 in words is "twenty million, sixty-seven thousand, seven".