67800973 has 2 divisors, whose sum is σ = 67800974. Its totient is φ = 67800972.

The previous prime is 67800919. The next prime is 67801007. The reversal of 67800973 is 37900876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65496649 + 2304324 = 8093^2 + 1518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67800973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67800373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33900486 + 33900487.

It is an arithmetic number, because the mean of its divisors is an integer number (33900487).

Almost surely, 2^67800973 is an apocalyptic number.

It is an amenable number.

67800973 is a deficient number, since it is larger than the sum of its proper divisors (1).

67800973 is an equidigital number, since it uses as much as digits as its factorization.

67800973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 67800973 is about 8234.1346236262. The cubic root of 67800973 is about 407.7669055753.

The spelling of 67800973 in words is "sixty-seven million, eight hundred thousand, nine hundred seventy-three".