8629426 has 16 divisors (see below), whose sum is σ = 14170968. Its totient is φ = 3916800.

The previous prime is 8629409. The next prime is 8629429. The reversal of 8629426 is 6249268.

It can be written as a sum of positive squares in 4 ways, for example, as 4431025 + 4198401 = 2105^2 + 2049^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8629429) 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, 1135 + ... + 4306.

Almost surely, 2^8629426 is an apocalyptic number.

8629426 is a deficient number, since it is larger than the sum of its proper divisors (5541542).

8629426 is a wasteful number, since it uses less digits than its factorization.

8629426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5517.

The product of its digits is 41472, while the sum is 37.

The square root of 8629426 is about 2937.5884667530. The cubic root of 8629426 is about 205.1133697730.

It can be divided in two parts, 86294 and 26, that added together give a triangular number (86320 = T₄₁₅).

The spelling of 8629426 in words is "eight million, six hundred twenty-nine thousand, four hundred twenty-six".