2379779 has 4 divisors (see below), whose sum is σ = 2519784. Its totient is φ = 2239776.

The previous prime is 2379761. The next prime is 2379781. The reversal of 2379779 is 9779732.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2379779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2379799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69977 + ... + 70010.

It is an arithmetic number, because the mean of its divisors is an integer number (629946).

2^2379779 is an apocalyptic number.

2379779 is a deficient number, since it is larger than the sum of its proper divisors (140005).

2379779 is a wasteful number, since it uses less digits than its factorization.

2379779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140004.

The product of its digits is 166698, while the sum is 44.

The square root of 2379779 is about 1542.6532338799. The cubic root of 2379779 is about 133.5095122438.

The spelling of 2379779 in words is "two million, three hundred seventy-nine thousand, seven hundred seventy-nine".