67670997 has 4 divisors (see below), whose sum is σ = 90228000. Its totient is φ = 45113996.

The previous prime is 67670971. The next prime is 67671001. The reversal of 67670997 is 79907676.

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 not a de Polignac number, because 67670997 - 2¹¹ = 67668949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67670497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11278497 + ... + 11278502.

It is an arithmetic number, because the mean of its divisors is an integer number (22557000).

Almost surely, 2^67670997 is an apocalyptic number.

It is an amenable number.

67670997 is a deficient number, since it is larger than the sum of its proper divisors (22557003).

67670997 is a wasteful number, since it uses less digits than its factorization.

67670997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22557002.

The product of its (nonzero) digits is 1000188, while the sum is 51.

The square root of 67670997 is about 8226.2383262339. The cubic root of 67670997 is about 407.5061727646.

The spelling of 67670997 in words is "sixty-seven million, six hundred seventy thousand, nine hundred ninety-seven".