2991854 has 16 divisors (see below), whose sum is σ = 4836480. Its totient is φ = 1383480.

The previous prime is 2991853. The next prime is 2991871. The reversal of 2991854 is 4581992.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991853) 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, 719 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (302280).

2^2991854 is an apocalyptic number.

2991854 is a deficient number, since it is larger than the sum of its proper divisors (1844626).

2991854 is a wasteful number, since it uses less digits than its factorization.

2991854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895.

The product of its digits is 25920, while the sum is 38.

The square root of 2991854 is about 1729.6976614426. The cubic root of 2991854 is about 144.0942990882.

The spelling of 2991854 in words is "two million, nine hundred ninety-one thousand, eight hundred fifty-four".