67812976 has 80 divisors (see below), whose sum is σ = 172488960. Its totient is φ = 25021440.

The previous prime is 67812973. The next prime is 67812977. The reversal of 67812976 is 67921876.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67812973) 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, 21960 + ... + 24856.

It is an arithmetic number, because the mean of its divisors is an integer number (2156112).

Almost surely, 2^67812976 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 67812976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86244480).

67812976 is an abundant number, since it is smaller than the sum of its proper divisors (104675984).

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

67812976 is a wasteful number, since it uses less digits than its factorization.

67812976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942 (or 2936 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 67812976 is about 8234.8634475624. The cubic root of 67812976 is about 407.7909668690.

Subtracting 67812976 from its reverse (67921876), we obtain a square (108900 = 330²).

The spelling of 67812976 in words is "sixty-seven million, eight hundred twelve thousand, nine hundred seventy-six".