70040899 has 2 divisors, whose sum is σ = 70040900. Its totient is φ = 70040898.

The previous prime is 70040891. The next prime is 70040917. The reversal of 70040899 is 99804007.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70040899 - 2³ = 70040891 is a prime.

It is not a weakly prime, because it can be changed into another prime (70040891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35020449 + 35020450.

It is an arithmetic number, because the mean of its divisors is an integer number (35020450).

Almost surely, 2^70040899 is an apocalyptic number.

70040899 is a deficient number, since it is larger than the sum of its proper divisors (1).

70040899 is an equidigital number, since it uses as much as digits as its factorization.

70040899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 70040899 is about 8369.0440911731. The cubic root of 70040899 is about 412.2087793287.

The spelling of 70040899 in words is "seventy million, forty thousand, eight hundred ninety-nine".