67431612 has 48 divisors (see below), whose sum is σ = 167196960. Its totient is φ = 21111552.

The previous prime is 67431527. The next prime is 67431613. The reversal of 67431612 is 21613476.

It is a self number, because there is not a number n which added to its sum of digits gives 67431612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67431613) 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, 10258 + ... + 15494.

It is an arithmetic number, because the mean of its divisors is an integer number (3483270).

Almost surely, 2^67431612 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 67431612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83598480).

67431612 is an abundant number, since it is smaller than the sum of its proper divisors (99765348).

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

67431612 is a wasteful number, since it uses less digits than its factorization.

67431612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5310 (or 5308 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 67431612 is about 8211.6753467243. The cubic root of 67431612 is about 407.0250896602.

The spelling of 67431612 in words is "sixty-seven million, four hundred thirty-one thousand, six hundred twelve".