2979849 has 4 divisors (see below), whose sum is σ = 3973136. Its totient is φ = 1986564.

The previous prime is 2979841. The next prime is 2979863. The reversal of 2979849 is 9489792.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2979849 - 2³ = 2979841 is a prime.

It is a D-number.

It is a Duffinian number.

2979849 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2979798 and 2979807.

It is not an unprimeable number, because it can be changed into a prime (2979841) 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, 496639 + ... + 496644.

It is an arithmetic number, because the mean of its divisors is an integer number (993284).

2^2979849 is an apocalyptic number.

It is an amenable number.

2979849 is a deficient number, since it is larger than the sum of its proper divisors (993287).

2979849 is an equidigital number, since it uses as much as digits as its factorization.

2979849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993286.

The product of its digits is 326592, while the sum is 48.

The square root of 2979849 is about 1726.2239136335. The cubic root of 2979849 is about 143.9013116246.

It can be divided in two parts, 2979 and 849, that added together give a triangular number (3828 = T₈₇).

The spelling of 2979849 in words is "two million, nine hundred seventy-nine thousand, eight hundred forty-nine".