67816972 has 24 divisors (see below), whose sum is σ = 124187616. Its totient is φ = 32343168.

The previous prime is 67816963. The next prime is 67816979. The reversal of 67816972 is 27961876.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (67816979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41238 + ... + 42850.

It is an arithmetic number, because the mean of its divisors is an integer number (5174484).

Almost surely, 2^67816972 is an apocalyptic number.

It is an amenable number.

67816972 is a deficient number, since it is larger than the sum of its proper divisors (56370644).

67816972 is a wasteful number, since it uses less digits than its factorization.

67816972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097 (or 2095 counting only the distinct ones).

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

The square root of 67816972 is about 8235.1060709623. The cubic root of 67816972 is about 407.7989766472.

The spelling of 67816972 in words is "sixty-seven million, eight hundred sixteen thousand, nine hundred seventy-two".