100771648 has 56 divisors (see below), whose sum is σ = 220992192. Its totient is φ = 45348864.

The previous prime is 100771633. The next prime is 100771663. The reversal of 100771648 is 846177001.

It is an interprime number because it is at equal distance from previous prime (100771633) and next prime (100771663).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23011 + ... + 27037.

Almost surely, 2^100771648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100771648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110496096).

100771648 is an abundant number, since it is smaller than the sum of its proper divisors (120220544).

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

100771648 is a wasteful number, since it uses less digits than its factorization.

100771648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079 (or 4069 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 100771648 is about 10038.5082557121. The cubic root of 100771648 is about 465.3497164936.

The spelling of 100771648 in words is "one hundred million, seven hundred seventy-one thousand, six hundred forty-eight".