2899261 has 2 divisors, whose sum is σ = 2899262. Its totient is φ = 2899260.

The previous prime is 2899199. The next prime is 2899271. The reversal of 2899261 is 1629982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2805625 + 93636 = 1675^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 2899261 - 2⁷ = 2899133 is a prime.

It is a super-2 number, since 2×2899261² = 16811428692242, which contains 22 as substring.

It is an Ulam number.

2899261 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2899261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2899271) 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 as a sum of consecutive naturals, namely, 1449630 + 1449631.

It is an arithmetic number, because the mean of its divisors is an integer number (1449631).

2^2899261 is an apocalyptic number.

It is an amenable number.

2899261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2899261 is an equidigital number, since it uses as much as digits as its factorization.

2899261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 37.

The square root of 2899261 is about 1702.7216448968. The cubic root of 2899261 is about 142.5922005141.

It can be divided in two parts, 2899 and 261, that added together give a triangular number (3160 = T₇₉).

The spelling of 2899261 in words is "two million, eight hundred ninety-nine thousand, two hundred sixty-one".