1914891 has 8 divisors (see below), whose sum is σ = 2785344. Its totient is φ = 1160520.

The previous prime is 1914889. The next prime is 1914923. The reversal of 1914891 is 1984191.

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

It is not a de Polignac number, because 1914891 - 2¹ = 1914889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 58027 = 1914891 / (1 + 9 + 1 + 4 + 8 + 9 + 1).

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1914811) 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, 28981 + ... + 29046.

It is an arithmetic number, because the mean of its divisors is an integer number (348168).

2^1914891 is an apocalyptic number.

1914891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1914891 is a deficient number, since it is larger than the sum of its proper divisors (870453).

1914891 is a wasteful number, since it uses less digits than its factorization.

1914891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58041.

The product of its digits is 2592, while the sum is 33.

The square root of 1914891 is about 1383.7958664485. The cubic root of 1914891 is about 124.1789602910.

The spelling of 1914891 in words is "one million, nine hundred fourteen thousand, eight hundred ninety-one".