67997201 has 4 divisors (see below), whose sum is σ = 68657472. Its totient is φ = 67336932.

The previous prime is 67997183. The next prime is 67997213. The reversal of 67997201 is 10279976.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67997201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67997221) 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, 329981 + ... + 330186.

It is an arithmetic number, because the mean of its divisors is an integer number (17164368).

Almost surely, 2^67997201 is an apocalyptic number.

It is an amenable number.

67997201 is a deficient number, since it is larger than the sum of its proper divisors (660271).

67997201 is a wasteful number, since it uses less digits than its factorization.

67997201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660270.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 67997201 is about 8246.0415351852. The cubic root of 67997201 is about 408.1599098440.

The spelling of 67997201 in words is "sixty-seven million, nine hundred ninety-seven thousand, two hundred one".