3509979 has 8 divisors (see below), whose sum is σ = 5105472. Its totient is φ = 2127240.

The previous prime is 3509951. The next prime is 3509981. The reversal of 3509979 is 9799053.

It is a happy number.

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

It is not a de Polignac number, because 3509979 - 2¹³ = 3501787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3509979.

It is not an unprimeable number, because it can be changed into a prime (3509999) 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, 53149 + ... + 53214.

It is an arithmetic number, because the mean of its divisors is an integer number (638184).

Almost surely, 2^3509979 is an apocalyptic number.

3509979 is a deficient number, since it is larger than the sum of its proper divisors (1595493).

3509979 is a wasteful number, since it uses less digits than its factorization.

3509979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106377.

The product of its (nonzero) digits is 76545, while the sum is 42.

The square root of 3509979 is about 1873.4937950258. The cubic root of 3509979 is about 151.9736074905.

The spelling of 3509979 in words is "three million, five hundred nine thousand, nine hundred seventy-nine".