243402967 has 4 divisors (see below), whose sum is σ = 243483696. Its totient is φ = 243322240.

The previous prime is 243402953. The next prime is 243403007. The reversal of 243402967 is 769204342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243402967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243402067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35659 + ... + 41932.

It is an arithmetic number, because the mean of its divisors is an integer number (60870924).

Almost surely, 2^243402967 is an apocalyptic number.

243402967 is a deficient number, since it is larger than the sum of its proper divisors (80729).

243402967 is an equidigital number, since it uses as much as digits as its factorization.

243402967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80728.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 243402967 is about 15601.3770866549. The cubic root of 243402967 is about 624.3698968054.

The spelling of 243402967 in words is "two hundred forty-three million, four hundred two thousand, nine hundred sixty-seven".