649412 has 12 divisors (see below), whose sum is σ = 1144080. Its totient is φ = 322536.

The previous prime is 649403. The next prime is 649421. The reversal of 649412 is 214946.

It is an interprime number because it is at equal distance from previous prime (649403) and next prime (649421).

It is a super-4 number, since 4×649412⁴ (a number of 24 digits) contains 4444 as substring.

It is an Ulam number.

It is a nialpdrome in base 15.

It is an unprimeable number.

649412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263 + ... + 1169.

It is an arithmetic number, because the mean of its divisors is an integer number (95340).

2⁶⁴⁹⁴¹² is an apocalyptic number.

It is an amenable number.

649412 is a deficient number, since it is larger than the sum of its proper divisors (494668).

649412 is a wasteful number, since it uses less digits than its factorization.

649412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1088 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 649412 is about 805.8610302031. The cubic root of 649412 is about 86.5977822131.

The spelling of 649412 in words is "six hundred forty-nine thousand, four hundred twelve".