67621152 has 96 divisors (see below), whose sum is σ = 188939520. Its totient is φ = 21116160.

The previous prime is 67621097. The next prime is 67621207. The reversal of 67621152 is 25112676.

It is an interprime number because it is at equal distance from previous prime (67621097) and next prime (67621207).

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238803 + ... + 239085.

It is an arithmetic number, because the mean of its divisors is an integer number (1968120).

Almost surely, 2^67621152 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 67621152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94469760).

67621152 is an abundant number, since it is smaller than the sum of its proper divisors (121318368).

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

67621152 is a wasteful number, since it uses less digits than its factorization.

67621152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 438 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 67621152 is about 8223.2081330829. The cubic root of 67621152 is about 407.4060947632.

The spelling of 67621152 in words is "sixty-seven million, six hundred twenty-one thousand, one hundred fifty-two".