67240497 has 8 divisors (see below), whose sum is σ = 90578656. Its totient is φ = 44364672.

The previous prime is 67240489. The next prime is 67240501. The reversal of 67240497 is 79404276.

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

It is not a de Polignac number, because 67240497 - 2³ = 67240489 is a prime.

It is a super-5 number, since 5×67240497⁵ (a number of 40 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67240897) 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, 115243 + ... + 115824.

It is an arithmetic number, because the mean of its divisors is an integer number (11322332).

Almost surely, 2^67240497 is an apocalyptic number.

It is an amenable number.

67240497 is a deficient number, since it is larger than the sum of its proper divisors (23338159).

67240497 is a wasteful number, since it uses less digits than its factorization.

67240497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231167.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 67240497 is about 8200.0303048220. The cubic root of 67240497 is about 406.6401949833.

The spelling of 67240497 in words is "sixty-seven million, two hundred forty thousand, four hundred ninety-seven".