67961397 has 16 divisors (see below), whose sum is σ = 103675392. Its totient is φ = 38791920.

The previous prime is 67961363. The next prime is 67961407. The reversal of 67961397 is 79316976.

It is not a de Polignac number, because 67961397 - 2⁸ = 67961141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67961497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36622 + ... + 38432.

It is an arithmetic number, because the mean of its divisors is an integer number (6479712).

Almost surely, 2^67961397 is an apocalyptic number.

It is an amenable number.

67961397 is a deficient number, since it is larger than the sum of its proper divisors (35713995).

67961397 is a wasteful number, since it uses less digits than its factorization.

67961397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608.

The product of its digits is 428652, while the sum is 48.

The square root of 67961397 is about 8243.8702682660. The cubic root of 67961397 is about 408.0882582519.

The spelling of 67961397 in words is "sixty-seven million, nine hundred sixty-one thousand, three hundred ninety-seven".