649970435 has 8 divisors (see below), whose sum is σ = 825844896. Its totient is φ = 489389440.

The previous prime is 649970389. The next prime is 649970437. The reversal of 649970435 is 534079946.

It is a happy number.

649970435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 649970435 - 2¹⁴ = 649954051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 649970435.

It is not an unprimeable number, because it can be changed into a prime (649970437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3823271 + ... + 3823440.

It is an arithmetic number, because the mean of its divisors is an integer number (103230612).

Almost surely, 2^649970435 is an apocalyptic number.

649970435 is a deficient number, since it is larger than the sum of its proper divisors (175874461).

649970435 is a wasteful number, since it uses less digits than its factorization.

649970435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7646733.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 649970435 is about 25494.5177440170. The cubic root of 649970435 is about 866.2259716243.

The spelling of 649970435 in words is "six hundred forty-nine million, nine hundred seventy thousand, four hundred thirty-five".