20678367 has 8 divisors (see below), whose sum is σ = 27641520. Its totient is φ = 13750400.

The previous prime is 20678353. The next prime is 20678381. The reversal of 20678367 is 76387602.

It is an interprime number because it is at equal distance from previous prime (20678353) and next prime (20678381).

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 20678367 - 2⁴ = 20678351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20678347) 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, 7392 + ... + 9797.

It is an arithmetic number, because the mean of its divisors is an integer number (3455190).

Almost surely, 2^20678367 is an apocalyptic number.

20678367 is a deficient number, since it is larger than the sum of its proper divisors (6963153).

20678367 is a wasteful number, since it uses less digits than its factorization.

20678367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17593.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 20678367 is about 4547.3472486715. The cubic root of 20678367 is about 274.4766553583.

The spelling of 20678367 in words is "twenty million, six hundred seventy-eight thousand, three hundred sixty-seven".