2939657 has 12 divisors (see below), whose sum is σ = 3621780. Its totient is φ = 2370816.

The previous prime is 2939641. The next prime is 2939663. The reversal of 2939657 is 7569392.

2939657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1207801 + 1731856 = 1099^2 + 1316^2 .

It is not a de Polignac number, because 2939657 - 2⁴ = 2939641 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 2¹¹ + 9⁶ + 3¹³ + 9⁶ + 6⁷ + 5³ + 7³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2939257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 932 + ... + 2597.

It is an arithmetic number, because the mean of its divisors is an integer number (301815).

2^2939657 is an apocalyptic number.

It is an amenable number.

2939657 is a deficient number, since it is larger than the sum of its proper divisors (682123).

2939657 is a wasteful number, since it uses less digits than its factorization.

2939657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560 (or 3553 counting only the distinct ones).

The product of its digits is 102060, while the sum is 41.

The square root of 2939657 is about 1714.5427961996. The cubic root of 2939657 is about 143.2514038119.

The spelling of 2939657 in words is "two million, nine hundred thirty-nine thousand, six hundred fifty-seven".