2665958 has 4 divisors (see below), whose sum is σ = 3998940. Its totient is φ = 1332978.

The previous prime is 2665939. The next prime is 2665967. The reversal of 2665958 is 8595662.

It is a semiprime because it is the product of two primes.

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, 666488 + ... + 666491.

It is an arithmetic number, because the mean of its divisors is an integer number (999735).

2^2665958 is an apocalyptic number.

2665958 is a deficient number, since it is larger than the sum of its proper divisors (1332982).

2665958 is a wasteful number, since it uses less digits than its factorization.

2665958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332981.

The product of its digits is 129600, while the sum is 41.

The square root of 2665958 is about 1632.7761634713. The cubic root of 2665958 is about 138.6599697312.

The spelling of 2665958 in words is "two million, six hundred sixty-five thousand, nine hundred fifty-eight".