649102 has 8 divisors (see below), whose sum is σ = 977112. Its totient is φ = 323400.

The previous prime is 649093. The next prime is 649123. The reversal of 649102 is 201946.

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

It is a congruent number.

It is an unprimeable number.

649102 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, 652 + ... + 1312.

It is an arithmetic number, because the mean of its divisors is an integer number (122139).

2⁶⁴⁹¹⁰² is an apocalyptic number.

649102 is a deficient number, since it is larger than the sum of its proper divisors (328010).

649102 is a wasteful number, since it uses less digits than its factorization.

649102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 649102 is about 805.6686663884. The cubic root of 649102 is about 86.5840007281.

The spelling of 649102 in words is "six hundred forty-nine thousand, one hundred two".