1914681 has 8 divisors (see below), whose sum is σ = 2664000. Its totient is φ = 1220912.

The previous prime is 1914673. The next prime is 1914691. The reversal of 1914681 is 1864191.

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 1914681 - 2³ = 1914673 is a prime.

It is a super-4 number, since 4×1914681⁴ (a number of 26 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1914641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13806 + ... + 13943.

It is an arithmetic number, because the mean of its divisors is an integer number (333000).

2^1914681 is an apocalyptic number.

It is an amenable number.

1914681 is a deficient number, since it is larger than the sum of its proper divisors (749319).

1914681 is a wasteful number, since it uses less digits than its factorization.

1914681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27775.

The product of its digits is 1728, while the sum is 30.

The square root of 1914681 is about 1383.7199861244. The cubic root of 1914681 is about 124.1744206880.

The spelling of 1914681 in words is "one million, nine hundred fourteen thousand, six hundred eighty-one".