67493812 has 6 divisors (see below), whose sum is σ = 118114178. Its totient is φ = 33746904.

The previous prime is 67493801. The next prime is 67493819. The reversal of 67493812 is 21839476.

It can be written as a sum of positive squares in only one way, i.e., 61559716 + 5934096 = 7846^2 + 2436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67493819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8436723 + ... + 8436730.

Almost surely, 2^67493812 is an apocalyptic number.

It is an amenable number.

67493812 is a deficient number, since it is larger than the sum of its proper divisors (50620366).

67493812 is a wasteful number, since it uses less digits than its factorization.

67493812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16873457 (or 16873455 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 67493812 is about 8215.4617642589. The cubic root of 67493812 is about 407.1502000229.

The spelling of 67493812 in words is "sixty-seven million, four hundred ninety-three thousand, eight hundred twelve".