649702 has 8 divisors (see below), whose sum is σ = 977976. Its totient is φ = 323712.

The previous prime is 649697. The next prime is 649709. The reversal of 649702 is 207946.

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

It is a super-2 number, since 2×649702² = 844225377608, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6² + 4³ + 7⁶ + 9⁶ + 0 + 2⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649709) 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, 838 + ... + 1414.

It is an arithmetic number, because the mean of its divisors is an integer number (122247).

2⁶⁴⁹⁷⁰² is an apocalyptic number.

649702 is a deficient number, since it is larger than the sum of its proper divisors (328274).

649702 is a wasteful number, since it uses less digits than its factorization.

649702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 649702 is about 806.0409418882. The cubic root of 649702 is about 86.6106706001.

The spelling of 649702 in words is "six hundred forty-nine thousand, seven hundred two".