67336397 has 4 divisors (see below), whose sum is σ = 68003196. Its totient is φ = 66669600.

The previous prime is 67336393. The next prime is 67336403. The reversal of 67336397 is 79363376.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66113161 + 1223236 = 8131^2 + 1106^2 .

It is a cyclic number.

It is not a de Polignac number, because 67336397 - 2² = 67336393 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 (67336393) 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, 333248 + ... + 333449.

It is an arithmetic number, because the mean of its divisors is an integer number (17000799).

Almost surely, 2^67336397 is an apocalyptic number.

It is an amenable number.

67336397 is a deficient number, since it is larger than the sum of its proper divisors (666799).

67336397 is a wasteful number, since it uses less digits than its factorization.

67336397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666798.

The product of its digits is 428652, while the sum is 44.

The square root of 67336397 is about 8205.8757606973. The cubic root of 67336397 is about 406.8334231306.

The spelling of 67336397 in words is "sixty-seven million, three hundred thirty-six thousand, three hundred ninety-seven".