20624379 has 8 divisors (see below), whose sum is σ = 27550272. Its totient is φ = 13724040.

The previous prime is 20624377. The next prime is 20624381. The reversal of 20624379 is 97342602.

It is an interprime number because it is at equal distance from previous prime (20624377) and next prime (20624381).

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

It is not a de Polignac number, because 20624379 - 2¹ = 20624377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20624377) 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, 4417 + ... + 7794.

It is an arithmetic number, because the mean of its divisors is an integer number (3443784).

Almost surely, 2^20624379 is an apocalyptic number.

20624379 is a deficient number, since it is larger than the sum of its proper divisors (6925893).

20624379 is a wasteful number, since it uses less digits than its factorization.

20624379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12777.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 20624379 is about 4541.4071607818. The cubic root of 20624379 is about 274.2375752184.

It can be divided in two parts, 2062 and 4379, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 20624379 in words is "twenty million, six hundred twenty-four thousand, three hundred seventy-nine".