649429 has 8 divisors (see below), whose sum is σ = 725472. Its totient is φ = 576240.

The previous prime is 649427. The next prime is 649457. The reversal of 649429 is 924946.

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

It is a cyclic number.

It is not a de Polignac number, because 649429 - 2¹ = 649427 is a prime.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 649394 and 649403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649421) 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, 214 + ... + 1159.

It is an arithmetic number, because the mean of its divisors is an integer number (90684).

2⁶⁴⁹⁴²⁹ is an apocalyptic number.

It is an amenable number.

649429 is a deficient number, since it is larger than the sum of its proper divisors (76043).

649429 is a wasteful number, since it uses less digits than its factorization.

649429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427.

The product of its digits is 15552, while the sum is 34.

The square root of 649429 is about 805.8715778584. The cubic root of 649429 is about 86.5985378451.

The spelling of 649429 in words is "six hundred forty-nine thousand, four hundred twenty-nine".