12950821 has 8 divisors (see below), whose sum is σ = 14767704. Its totient is φ = 11251200.

The previous prime is 12950801. The next prime is 12950827. The reversal of 12950821 is 12805921.

12950821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1185921 + 11764900 = 1089^2 + 3430^2 .

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 12950821 - 2⁵ = 12950789 is a prime.

It is a super-3 number, since 3×12950821³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12950821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12950827) 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, 29080 + ... + 29521.

It is an arithmetic number, because the mean of its divisors is an integer number (1845963).

Almost surely, 2^12950821 is an apocalyptic number.

It is an amenable number.

12950821 is a deficient number, since it is larger than the sum of its proper divisors (1816883).

12950821 is a wasteful number, since it uses less digits than its factorization.

12950821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58631.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 12950821 is about 3598.7249130769. The cubic root of 12950821 is about 234.8365907895.

The spelling of 12950821 in words is "twelve million, nine hundred fifty thousand, eight hundred twenty-one".