649274 has 4 divisors (see below), whose sum is σ = 973914. Its totient is φ = 324636.

The previous prime is 649273. The next prime is 649277. The reversal of 649274 is 472946.

649274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 555025 + 94249 = 745^2 + 307^2 .

It is a d-powerful number, because it can be written as 6² + 4 + 2⁷ + 9⁶ + 7⁶ + 4² .

It is a self number, because there is not a number n which added to its sum of digits gives 649274.

It is not an unprimeable number, because it can be changed into a prime (649273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162317 + ... + 162320.

2⁶⁴⁹²⁷⁴ is an apocalyptic number.

649274 is a deficient number, since it is larger than the sum of its proper divisors (324640).

649274 is a wasteful number, since it uses less digits than its factorization.

649274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324639.

The product of its digits is 12096, while the sum is 32.

The square root of 649274 is about 805.7754029505. The cubic root of 649274 is about 86.5916477712.

The spelling of 649274 in words is "six hundred forty-nine thousand, two hundred seventy-four".