70047899 has 2 divisors, whose sum is σ = 70047900. Its totient is φ = 70047898.

The previous prime is 70047863. The next prime is 70047911. The reversal of 70047899 is 99874007.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70047899 is a prime.

It is not a weakly prime, because it can be changed into another prime (70047829) 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, 35023949 + 35023950.

It is an arithmetic number, because the mean of its divisors is an integer number (35023950).

Almost surely, 2^70047899 is an apocalyptic number.

70047899 is a deficient number, since it is larger than the sum of its proper divisors (1).

70047899 is an equidigital number, since it uses as much as digits as its factorization.

70047899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 70047899 is about 8369.4622885822. The cubic root of 70047899 is about 412.2225111406. Note that the first 3 decimals are identical.

It can be divided in two parts, 70047 and 899, that multiplied together give a triangular number (62972253 = T₁₁₂₂₂).

The spelling of 70047899 in words is "seventy million, forty-seven thousand, eight hundred ninety-nine".