12901789 has 8 divisors (see below), whose sum is σ = 13340888. Its totient is φ = 12467520.

The previous prime is 12901787. The next prime is 12901799. The reversal of 12901789 is 98710921.

12901789 is digitally balanced in base 3, 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 4169764 + 8732025 = 2042^2 + 2955^2 .

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

It is not a de Polignac number, because 12901789 - 2¹ = 12901787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12901787) 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, 4699 + ... + 6919.

It is an arithmetic number, because the mean of its divisors is an integer number (1667611).

Almost surely, 2^12901789 is an apocalyptic number.

It is an amenable number.

12901789 is a deficient number, since it is larger than the sum of its proper divisors (439099).

12901789 is a wasteful number, since it uses less digits than its factorization.

12901789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 12901789 is about 3591.9060399738. The cubic root of 12901789 is about 234.5398510506.

The spelling of 12901789 in words is "twelve million, nine hundred one thousand, seven hundred eighty-nine".