67601397 has 4 divisors (see below), whose sum is σ = 90135200. Its totient is φ = 45067596.

The previous prime is 67601383. The next prime is 67601441. The reversal of 67601397 is 79310676.

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 not a de Polignac number, because 67601397 - 2⁴ = 67601381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67601377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11266897 + ... + 11266902.

It is an arithmetic number, because the mean of its divisors is an integer number (22533800).

Almost surely, 2^67601397 is an apocalyptic number.

It is an amenable number.

67601397 is a deficient number, since it is larger than the sum of its proper divisors (22533803).

67601397 is a wasteful number, since it uses less digits than its factorization.

67601397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22533802.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 67601397 is about 8222.0068718045. The cubic root of 67601397 is about 407.3664173791.

The spelling of 67601397 in words is "sixty-seven million, six hundred one thousand, three hundred ninety-seven".