2129694 has 16 divisors (see below), whose sum is σ = 4867968. Its totient is φ = 608472.

The previous prime is 2129689. The next prime is 2129713. The reversal of 2129694 is 4969212.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25312 + ... + 25395.

It is an arithmetic number, because the mean of its divisors is an integer number (304248).

2^2129694 is an apocalyptic number.

2129694 is an abundant number, since it is smaller than the sum of its proper divisors (2738274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2129694 is a wasteful number, since it uses less digits than its factorization.

2129694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50719.

The product of its digits is 7776, while the sum is 33.

The square root of 2129694 is about 1459.3471142946. The cubic root of 2129694 is about 128.6586734127.

The spelling of 2129694 in words is "two million, one hundred twenty-nine thousand, six hundred ninety-four".