649101084 has 24 divisors (see below), whose sum is σ = 1566796560. Its totient is φ = 208905984.

The previous prime is 649101083. The next prime is 649101107. The reversal of 649101084 is 480101946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649101083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932269 + ... + 932964.

It is an arithmetic number, because the mean of its divisors is an integer number (65283190).

Almost surely, 2^649101084 is an apocalyptic number.

It is an amenable number.

649101084 is an abundant number, since it is smaller than the sum of its proper divisors (917695476).

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

649101084 is a wasteful number, since it uses less digits than its factorization.

649101084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865269 (or 1865267 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 649101084 is about 25477.4622755093. The cubic root of 649101084 is about 865.8395999954.

The spelling of 649101084 in words is "six hundred forty-nine million, one hundred one thousand, eighty-four".