8391954 has 8 divisors (see below), whose sum is σ = 16783920. Its totient is φ = 2797316.

The previous prime is 8391949. The next prime is 8391959. The reversal of 8391954 is 4591938.

It is an interprime number because it is at equal distance from previous prime (8391949) and next prime (8391959).

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

8391954 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8391959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699324 + ... + 699335.

It is an arithmetic number, because the mean of its divisors is an integer number (2097990).

Almost surely, 2^8391954 is an apocalyptic number.

8391954 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8391954 is a wasteful number, since it uses less digits than its factorization.

8391954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398664.

The product of its digits is 38880, while the sum is 39.

The square root of 8391954 is about 2896.8869498135. The cubic root of 8391954 is about 203.2143464616.

The spelling of 8391954 in words is "eight million, three hundred ninety-one thousand, nine hundred fifty-four".