649170 has 24 divisors (see below), whose sum is σ = 1688076. Its totient is φ = 173088.

The previous prime is 649157. The next prime is 649183. The reversal of 649170 is 71946.

649170 is a `hidden beast` number, since 649 + 17 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (649157) and next prime (649183).

It can be written as a sum of positive squares in 2 ways, for example, as 641601 + 7569 = 801^2 + 87^2 .

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 649170.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3517 + ... + 3696.

2⁶⁴⁹¹⁷⁰ is an apocalyptic number.

649170 is an abundant number, since it is smaller than the sum of its proper divisors (1038906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649170 is a wasteful number, since it uses less digits than its factorization.

649170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7226 (or 7223 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 649170 is about 805.7108662541. The cubic root of 649170 is about 86.5870241391.

It can be divided in two parts, 6491 and 70, that added together give a 8-th power (6561 = 3⁸).

The spelling of 649170 in words is "six hundred forty-nine thousand, one hundred seventy".