2378989 has 8 divisors (see below), whose sum is σ = 2469240. Its totient is φ = 2290176.

The previous prime is 2378977. The next prime is 2378993. The reversal of 2378989 is 9898732.

2378989 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 28900 + 2350089 = 170^2 + 1533^2 .

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 2378989 - 2¹⁹ = 1854701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2372989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3897 + ... + 4465.

It is an arithmetic number, because the mean of its divisors is an integer number (308655).

2^2378989 is an apocalyptic number.

It is an amenable number.

2378989 is a deficient number, since it is larger than the sum of its proper divisors (90251).

2378989 is a wasteful number, since it uses less digits than its factorization.

2378989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719.

The product of its digits is 217728, while the sum is 46.

The square root of 2378989 is about 1542.3971602671. The cubic root of 2378989 is about 133.4947371760.

The spelling of 2378989 in words is "two million, three hundred seventy-eight thousand, nine hundred eighty-nine".