67171488 has 96 divisors (see below), whose sum is σ = 189423360. Its totient is φ = 20766720.

The previous prime is 67171487. The next prime is 67171493. The reversal of 67171488 is 88417176.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (67171487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128668 + ... + 129188.

It is an arithmetic number, because the mean of its divisors is an integer number (1973160).

Almost surely, 2^67171488 is an apocalyptic number.

67171488 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67171488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94711680).

67171488 is an abundant number, since it is smaller than the sum of its proper divisors (122251872).

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

67171488 is a wasteful number, since it uses less digits than its factorization.

67171488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 622 counting only the distinct ones).

The product of its digits is 75264, while the sum is 42.

The square root of 67171488 is about 8195.8213743346. The cubic root of 67171488 is about 406.5010355981.

The spelling of 67171488 in words is "sixty-seven million, one hundred seventy-one thousand, four hundred eighty-eight".