2660998 has 4 divisors (see below), whose sum is σ = 3991500. Its totient is φ = 1330498.

The previous prime is 2660989. The next prime is 2661013. The reversal of 2660998 is 8990662.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8990662 = 2 ⋅4495331.

It is a self number, because there is not a number n which added to its sum of digits gives 2660998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665248 + ... + 665251.

It is an arithmetic number, because the mean of its divisors is an integer number (997875).

2^2660998 is an apocalyptic number.

2660998 is a deficient number, since it is larger than the sum of its proper divisors (1330502).

2660998 is a wasteful number, since it uses less digits than its factorization.

2660998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330501.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 2660998 is about 1631.2565708680. The cubic root of 2660998 is about 138.5739243132.

The spelling of 2660998 in words is "two million, six hundred sixty thousand, nine hundred ninety-eight".