8429149 has 4 divisors (see below), whose sum is σ = 8634780. Its totient is φ = 8223520.

The previous prime is 8429147. The next prime is 8429167. The reversal of 8429149 is 9419248.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2229049 + 6200100 = 1493^2 + 2490^2 .

It is a cyclic number.

It is not a de Polignac number, because 8429149 - 2¹ = 8429147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8429143) 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 3 ways as a sum of consecutive naturals, for example, 102754 + ... + 102835.

It is an arithmetic number, because the mean of its divisors is an integer number (2158695).

Almost surely, 2^8429149 is an apocalyptic number.

It is an amenable number.

8429149 is a deficient number, since it is larger than the sum of its proper divisors (205631).

8429149 is a wasteful number, since it uses less digits than its factorization.

8429149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205630.

The product of its digits is 20736, while the sum is 37.

The square root of 8429149 is about 2903.2996745083. The cubic root of 8429149 is about 203.5141343285.

Subtracting 8429149 from its reverse (9419248), we obtain a palindrome (990099).

The spelling of 8429149 in words is "eight million, four hundred twenty-nine thousand, one hundred forty-nine".