67649500 has 48 divisors (see below), whose sum is σ = 155544480. Its totient is φ = 25632000.

The previous prime is 67649479. The next prime is 67649501. The reversal of 67649500 is 594676.

It is a self number, because there is not a number n which added to its sum of digits gives 67649500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67649501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5940 + ... + 13060.

It is an arithmetic number, because the mean of its divisors is an integer number (3240510).

Almost surely, 2^67649500 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 67649500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77772240).

67649500 is an abundant number, since it is smaller than the sum of its proper divisors (87894980).

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

67649500 is a wasteful number, since it uses less digits than its factorization.

67649500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7159 (or 7147 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 67649500 is about 8224.9316106579. The cubic root of 67649500 is about 407.4630174575.

It can be divided in two parts, 676 and 49500, that added together give a square (50176 = 224²).

The spelling of 67649500 in words is "sixty-seven million, six hundred forty-nine thousand, five hundred".