20752367 has 8 divisors (see below), whose sum is σ = 21134400. Its totient is φ = 20373120.

The previous prime is 20752363. The next prime is 20752399. The reversal of 20752367 is 76325702.

It is a happy number.

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 20752367 - 2² = 20752363 is a prime.

It is a super-2 number, since 2×20752367² = 861321472205378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20752363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19259 + ... + 20307.

It is an arithmetic number, because the mean of its divisors is an integer number (2641800).

Almost surely, 2^20752367 is an apocalyptic number.

20752367 is a deficient number, since it is larger than the sum of its proper divisors (382033).

20752367 is a wasteful number, since it uses less digits than its factorization.

20752367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 20752367 is about 4555.4765941666. The cubic root of 20752367 is about 274.8036813718.

The spelling of 20752367 in words is "twenty million, seven hundred fifty-two thousand, three hundred sixty-seven".