667067803 has 2 divisors, whose sum is σ = 667067804. Its totient is φ = 667067802.

The previous prime is 667067741. The next prime is 667067809. The reversal of 667067803 is 308760766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667067803 - 2¹³ = 667059611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667067803.

It is not a weakly prime, because it can be changed into another prime (667067809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333533901 + 333533902.

It is an arithmetic number, because the mean of its divisors is an integer number (333533902).

Almost surely, 2^667067803 is an apocalyptic number.

667067803 is a deficient number, since it is larger than the sum of its proper divisors (1).

667067803 is an equidigital number, since it uses as much as digits as its factorization.

667067803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 667067803 is about 25827.6557782544. The cubic root of 667067803 is about 873.7556420383.

The spelling of 667067803 in words is "six hundred sixty-seven million, sixty-seven thousand, eight hundred three".