70424447 has 2 divisors, whose sum is σ = 70424448. Its totient is φ = 70424446.

The previous prime is 70424443. The next prime is 70424461. The reversal of 70424447 is 74442407.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70424447 - 2² = 70424443 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70424443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35212223 + 35212224.

It is an arithmetic number, because the mean of its divisors is an integer number (35212224).

Almost surely, 2^70424447 is an apocalyptic number.

70424447 is a deficient number, since it is larger than the sum of its proper divisors (1).

70424447 is an equidigital number, since it uses as much as digits as its factorization.

70424447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 32.

The square root of 70424447 is about 8391.9274901539. The cubic root of 70424447 is about 412.9598363935.

The spelling of 70424447 in words is "seventy million, four hundred twenty-four thousand, four hundred forty-seven".