67013898 has 48 divisors (see below), whose sum is σ = 162744384. Its totient is φ = 18017280.

The previous prime is 67013879. The next prime is 67013899. The reversal of 67013898 is 89831076.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (67013899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9378 + ... + 14898.

It is an arithmetic number, because the mean of its divisors is an integer number (3390508).

Almost surely, 2^67013898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67013898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81372192).

67013898 is an abundant number, since it is smaller than the sum of its proper divisors (95730486).

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

67013898 is a wasteful number, since it uses less digits than its factorization.

67013898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567 (or 5550 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 67013898 is about 8186.2016833205. The cubic root of 67013898 is about 406.1828913843.

The spelling of 67013898 in words is "sixty-seven million, thirteen thousand, eight hundred ninety-eight".