11379989 has 2 divisors, whose sum is σ = 11379990. Its totient is φ = 11379988.

The previous prime is 11379967. The next prime is 11379997. The reversal of 11379989 is 98997311.

It is a happy number.

11379989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9579025 + 1800964 = 3095^2 + 1342^2 .

It is a cyclic number.

It is not a de Polignac number, because 11379989 - 2¹² = 11375893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11379959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5689994 + 5689995.

It is an arithmetic number, because the mean of its divisors is an integer number (5689995).

Almost surely, 2^11379989 is an apocalyptic number.

It is an amenable number.

11379989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11379989 is an equidigital number, since it uses as much as digits as its factorization.

11379989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 47.

The square root of 11379989 is about 3373.4239282960. The cubic root of 11379989 is about 224.9299469157.

The spelling of 11379989 in words is "eleven million, three hundred seventy-nine thousand, nine hundred eighty-nine".