67992897 has 16 divisors (see below), whose sum is σ = 104637312. Its totient is φ = 38467200.

The previous prime is 67992893. The next prime is 67992901. The reversal of 67992897 is 79829976.

It is an interprime number because it is at equal distance from previous prime (67992893) and next prime (67992901).

It is not a de Polignac number, because 67992897 - 2² = 67992893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67992893) 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, 13908 + ... + 18149.

It is an arithmetic number, because the mean of its divisors is an integer number (6539832).

Almost surely, 2^67992897 is an apocalyptic number.

It is an amenable number.

67992897 is a deficient number, since it is larger than the sum of its proper divisors (36644415).

67992897 is a wasteful number, since it uses less digits than its factorization.

67992897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32168.

The product of its digits is 3429216, while the sum is 57.

The square root of 67992897 is about 8245.7805573517. The cubic root of 67992897 is about 408.1512979340.

The spelling of 67992897 in words is "sixty-seven million, nine hundred ninety-two thousand, eight hundred ninety-seven".