67432997 has 2 divisors, whose sum is σ = 67432998. Its totient is φ = 67432996.

The previous prime is 67432993. The next prime is 67433039. The reversal of 67432997 is 79923476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34093921 + 33339076 = 5839^2 + 5774^2 .

It is a cyclic number.

It is not a de Polignac number, because 67432997 - 2² = 67432993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67432991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33716498 + 33716499.

It is an arithmetic number, because the mean of its divisors is an integer number (33716499).

Almost surely, 2^67432997 is an apocalyptic number.

It is an amenable number.

67432997 is a deficient number, since it is larger than the sum of its proper divisors (1).

67432997 is an equidigital number, since it uses as much as digits as its factorization.

67432997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 47.

The square root of 67432997 is about 8211.7596774382. The cubic root of 67432997 is about 407.0278763151.

The spelling of 67432997 in words is "sixty-seven million, four hundred thirty-two thousand, nine hundred ninety-seven".