2189707 has 8 divisors (see below), whose sum is σ = 2373840. Its totient is φ = 2007840.

The previous prime is 2189699. The next prime is 2189713. The reversal of 2189707 is 7079812.

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

It is a cyclic number.

It is not a de Polignac number, because 2189707 - 2³ = 2189699 is a prime.

It is a Duffinian number.

2189707 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2189767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857 + ... + 2797.

It is an arithmetic number, because the mean of its divisors is an integer number (296730).

2^2189707 is an apocalyptic number.

2189707 is a deficient number, since it is larger than the sum of its proper divisors (184133).

2189707 is a wasteful number, since it uses less digits than its factorization.

2189707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 2189707 is about 1479.7658598576. The cubic root of 2189707 is about 129.8559943849.

The spelling of 2189707 in words is "two million, one hundred eighty-nine thousand, seven hundred seven".