649370 has 8 divisors (see below), whose sum is σ = 1168884. Its totient is φ = 259744.

The previous prime is 649361. The next prime is 649379. The reversal of 649370 is 73946.

649370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (649361) and next prime (649379).

It can be written as a sum of positive squares in 2 ways, for example, as 635209 + 14161 = 797^2 + 119^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 649370.

It is not an unprimeable number, because it can be changed into a prime (649379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32459 + ... + 32478.

2⁶⁴⁹³⁷⁰ is an apocalyptic number.

649370 is a deficient number, since it is larger than the sum of its proper divisors (519514).

649370 is a wasteful number, since it uses less digits than its factorization.

649370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64944.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 649370 is about 805.8349706981. The cubic root of 649370 is about 86.5959153010.

The spelling of 649370 in words is "six hundred forty-nine thousand, three hundred seventy".