2619961 has 2 divisors, whose sum is σ = 2619962. Its totient is φ = 2619960.

The previous prime is 2619937. The next prime is 2619973. The reversal of 2619961 is 1699162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2205225 + 414736 = 1485^2 + 644^2 .

It is a cyclic number.

It is not a de Polignac number, because 2619961 - 2⁷ = 2619833 is a prime.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (2619931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1309980 + 1309981.

It is an arithmetic number, because the mean of its divisors is an integer number (1309981).

2^2619961 is an apocalyptic number.

It is an amenable number.

2619961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2619961 is an equidigital number, since it uses as much as digits as its factorization.

2619961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 34.

The square root of 2619961 is about 1618.6293584388. The cubic root of 2619961 is about 137.8578842217.

The spelling of 2619961 in words is "two million, six hundred nineteen thousand, nine hundred sixty-one".