7866474 has 32 divisors (see below), whose sum is σ = 19616256. Its totient is φ = 2043120.

The previous prime is 7866473. The next prime is 7866479. The reversal of 7866474 is 4746687.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a d-powerful number, because it can be written as 7⁴ + 8⁷ + 6² + 6² + 4⁵ + 7⁸ + 4⁵ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7866473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8052 + ... + 8975.

It is an arithmetic number, because the mean of its divisors is an integer number (613008).

Almost surely, 2^7866474 is an apocalyptic number.

7866474 is an abundant number, since it is smaller than the sum of its proper divisors (11749782).

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

7866474 is a wasteful number, since it uses less digits than its factorization.

7866474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17050.

The product of its digits is 225792, while the sum is 42.

The square root of 7866474 is about 2804.7235157855. The cubic root of 7866474 is about 198.8810345907.

It can be divided in two parts, 786 and 6474, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 7866474 in words is "seven million, eight hundred sixty-six thousand, four hundred seventy-four".