2611988 has 6 divisors (see below), whose sum is σ = 4570986. Its totient is φ = 1305992.

The previous prime is 2611981. The next prime is 2611991. The reversal of 2611988 is 8891162.

2611988 is digitally balanced in base 5, 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 only one way, i.e., 1567504 + 1044484 = 1252^2 + 1022^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2611981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326495 + ... + 326502.

It is an arithmetic number, because the mean of its divisors is an integer number (761831).

2^2611988 is an apocalyptic number.

It is an amenable number.

2611988 is a deficient number, since it is larger than the sum of its proper divisors (1958998).

2611988 is a wasteful number, since it uses less digits than its factorization.

2611988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653001 (or 652999 counting only the distinct ones).

The product of its digits is 6912, while the sum is 35.

The square root of 2611988 is about 1616.1645955781. The cubic root of 2611988 is about 137.7179002348.

The spelling of 2611988 in words is "two million, six hundred eleven thousand, nine hundred eighty-eight".