14770021 has 6 divisors (see below), whose sum is σ = 17181510. Its totient is φ = 12659976.

The previous prime is 14770003. The next prime is 14770031. The reversal of 14770021 is 12007741.

It can be written as a sum of positive squares in only one way, i.e., 8767521 + 6002500 = 2961^2 + 2450^2 .

It is not a de Polignac number, because 14770021 - 2⁷ = 14769893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14769974 and 14770001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14770031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150666 + ... + 150763.

It is an arithmetic number, because the mean of its divisors is an integer number (2863585).

Almost surely, 2^14770021 is an apocalyptic number.

It is an amenable number.

14770021 is a deficient number, since it is larger than the sum of its proper divisors (2411489).

14770021 is an equidigital number, since it uses as much as digits as its factorization.

14770021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301443 (or 301436 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 14770021 is about 3843.1785022296. The cubic root of 14770021 is about 245.3543172738.

Adding to 14770021 its reverse (12007741), we get a palindrome (26777762).

The spelling of 14770021 in words is "fourteen million, seven hundred seventy thousand, twenty-one".