2661694 has 8 divisors (see below), whose sum is σ = 4562928. Its totient is φ = 1140720.

The previous prime is 2661689. The next prime is 2661731. The reversal of 2661694 is 4961662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2661694² = 14169229899272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95047 + ... + 95074.

It is an arithmetic number, because the mean of its divisors is an integer number (570366).

2^2661694 is an apocalyptic number.

2661694 is a deficient number, since it is larger than the sum of its proper divisors (1901234).

2661694 is a wasteful number, since it uses less digits than its factorization.

2661694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190130.

The product of its digits is 15552, while the sum is 34.

The square root of 2661694 is about 1631.4698893942. The cubic root of 2661694 is about 138.5860048739.

Subtracting 2661694 from its reverse (4961662), we obtain a cube (2299968 = 132³).

The spelling of 2661694 in words is "two million, six hundred sixty-one thousand, six hundred ninety-four".