3619979 has 4 divisors (see below), whose sum is σ = 3949080. Its totient is φ = 3290880.

The previous prime is 3619961. The next prime is 3619981. The reversal of 3619979 is 9799163.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9799163 = 11 ⋅890833.

It is a cyclic number.

It is not a de Polignac number, because 3619979 - 2⁸ = 3619723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3619909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164534 + ... + 164555.

It is an arithmetic number, because the mean of its divisors is an integer number (987270).

Almost surely, 2^3619979 is an apocalyptic number.

3619979 is a deficient number, since it is larger than the sum of its proper divisors (329101).

3619979 is a wasteful number, since it uses less digits than its factorization.

3619979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329100.

The product of its digits is 91854, while the sum is 44.

The square root of 3619979 is about 1902.6242403586. The cubic root of 3619979 is about 153.5448839026.

The spelling of 3619979 in words is "three million, six hundred nineteen thousand, nine hundred seventy-nine".