67797397 has 4 divisors (see below), whose sum is σ = 68078956. Its totient is φ = 67515840.

The previous prime is 67797383. The next prime is 67797427. The reversal of 67797397 is 79379776.

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 48358116 + 19439281 = 6954^2 + 4409^2 .

It is a cyclic number.

It is not a de Polignac number, because 67797397 - 2¹¹ = 67795349 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 (67797497) 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, 140418 + ... + 140899.

It is an arithmetic number, because the mean of its divisors is an integer number (17019739).

Almost surely, 2^67797397 is an apocalyptic number.

It is an amenable number.

67797397 is a deficient number, since it is larger than the sum of its proper divisors (281559).

67797397 is a wasteful number, since it uses less digits than its factorization.

67797397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281558.

The product of its digits is 3500658, while the sum is 55.

The square root of 67797397 is about 8233.9174759042. The cubic root of 67797397 is about 407.7597365529.

The spelling of 67797397 in words is "sixty-seven million, seven hundred ninety-seven thousand, three hundred ninety-seven".