2763881 has 2 divisors, whose sum is σ = 2763882. Its totient is φ = 2763880.

The previous prime is 2763833. The next prime is 2763883. The reversal of 2763881 is 1883672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2755600 + 8281 = 1660^2 + 91^2 .

It is a cyclic number.

It is not a de Polignac number, because 2763881 - 2¹⁴ = 2747497 is a prime.

It is a super-2 number, since 2×2763881² = 15278076364322, which contains 22 as substring.

Together with 2763883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2763883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1381940 + 1381941.

It is an arithmetic number, because the mean of its divisors is an integer number (1381941).

2^2763881 is an apocalyptic number.

It is an amenable number.

2763881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2763881 is an equidigital number, since it uses as much as digits as its factorization.

2763881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 2763881 is about 1662.4924059977. The cubic root of 2763881 is about 140.3372989453.

The spelling of 2763881 in words is "two million, seven hundred sixty-three thousand, eight hundred eighty-one".