7891494 has 16 divisors (see below), whose sum is σ = 16997232. Its totient is φ = 2428128.

The previous prime is 7891493. The next prime is 7891523. The reversal of 7891494 is 4941987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7891493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50509 + ... + 50664.

It is an arithmetic number, because the mean of its divisors is an integer number (1062327).

Almost surely, 2^7891494 is an apocalyptic number.

7891494 is an abundant number, since it is smaller than the sum of its proper divisors (9105738).

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

7891494 is a wasteful number, since it uses less digits than its factorization.

7891494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101191.

The product of its digits is 72576, while the sum is 42.

The square root of 7891494 is about 2809.1803074918. The cubic root of 7891494 is about 199.0916642092.

It can be divided in two parts, 7891 and 494, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 7891494 in words is "seven million, eight hundred ninety-one thousand, four hundred ninety-four".