66734492 has 12 divisors (see below), whose sum is σ = 127402296. Its totient is φ = 30333840.

The previous prime is 66734489. The next prime is 66734497. The reversal of 66734492 is 29443766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66734497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758303 + ... + 758390.

It is an arithmetic number, because the mean of its divisors is an integer number (10616858).

Almost surely, 2^66734492 is an apocalyptic number.

It is an amenable number.

66734492 is a deficient number, since it is larger than the sum of its proper divisors (60667804).

66734492 is a wasteful number, since it uses less digits than its factorization.

66734492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516708 (or 1516706 counting only the distinct ones).

The product of its digits is 217728, while the sum is 41.

The square root of 66734492 is about 8169.1181898660. The cubic root of 66734492 is about 405.6175955575.

The spelling of 66734492 in words is "sixty-six million, seven hundred thirty-four thousand, four hundred ninety-two".