67740147 has 6 divisors (see below), whose sum is σ = 97846892. Its totient is φ = 45160092.

The previous prime is 67740139. The next prime is 67740151. The reversal of 67740147 is 74104776.

It is not a de Polignac number, because 67740147 - 2³ = 67740139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67740107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3763333 + ... + 3763350.

Almost surely, 2^67740147 is an apocalyptic number.

67740147 is a deficient number, since it is larger than the sum of its proper divisors (30106745).

67740147 is a wasteful number, since it uses less digits than its factorization.

67740147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7526689 (or 7526686 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 67740147 is about 8230.4402676892. The cubic root of 67740147 is about 407.6449296926.

The spelling of 67740147 in words is "sixty-seven million, seven hundred forty thousand, one hundred forty-seven".