8400974 has 4 divisors (see below), whose sum is σ = 12601464. Its totient is φ = 4200486.

The previous prime is 8400971. The next prime is 8400979. The reversal of 8400974 is 4790048.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8400974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8400971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2100242 + ... + 2100245.

It is an arithmetic number, because the mean of its divisors is an integer number (3150366).

Almost surely, 2^8400974 is an apocalyptic number.

8400974 is a deficient number, since it is larger than the sum of its proper divisors (4200490).

8400974 is a wasteful number, since it uses less digits than its factorization.

8400974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200489.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8400974 is about 2898.4433753310. The cubic root of 8400974 is about 203.2871279645.

The spelling of 8400974 in words is "eight million, four hundred thousand, nine hundred seventy-four".