67740395 has 8 divisors (see below), whose sum is σ = 83018304. Its totient is φ = 53039104.

The previous prime is 67740391. The next prime is 67740401. The reversal of 67740395 is 59304776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67740395 - 2² = 67740391 is a prime.

It is a super-2 number, since 2×67740395² = 9177522229512050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67740391) 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, 143894 + ... + 144363.

It is an arithmetic number, because the mean of its divisors is an integer number (10377288).

Almost surely, 2^67740395 is an apocalyptic number.

67740395 is a deficient number, since it is larger than the sum of its proper divisors (15277909).

67740395 is a wasteful number, since it uses less digits than its factorization.

67740395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288309.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 67740395 is about 8230.4553336981. The cubic root of 67740395 is about 407.6454271614.

The spelling of 67740395 in words is "sixty-seven million, seven hundred forty thousand, three hundred ninety-five".