70440323 has 2 divisors, whose sum is σ = 70440324. Its totient is φ = 70440322.

The previous prime is 70440319. The next prime is 70440371. The reversal of 70440323 is 32304407.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (32304407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70440323 - 2² = 70440319 is a prime.

It is not a weakly prime, because it can be changed into another prime (70440373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35220161 + 35220162.

It is an arithmetic number, because the mean of its divisors is an integer number (35220162).

Almost surely, 2^70440323 is an apocalyptic number.

70440323 is a deficient number, since it is larger than the sum of its proper divisors (1).

70440323 is an equidigital number, since it uses as much as digits as its factorization.

70440323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 70440323 is about 8392.8733458810. The cubic root of 70440323 is about 412.9908656646.

The spelling of 70440323 in words is "seventy million, four hundred forty thousand, three hundred twenty-three".