70424423 has 2 divisors, whose sum is σ = 70424424. Its totient is φ = 70424422.

The previous prime is 70424407. The next prime is 70424443. The reversal of 70424423 is 32442407.

It is a weak prime.

It is an emirp because it is prime and its reverse (32442407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70424423 - 2⁴ = 70424407 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 70424392 and 70424401.

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, 35212211 + 35212212.

It is an arithmetic number, because the mean of its divisors is an integer number (35212212).

Almost surely, 2^70424423 is an apocalyptic number.

70424423 is a deficient number, since it is larger than the sum of its proper divisors (1).

70424423 is an equidigital number, since it uses as much as digits as its factorization.

70424423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 70424423 is about 8391.9260602081. The cubic root of 70424423 is about 412.9597894825.

The spelling of 70424423 in words is "seventy million, four hundred twenty-four thousand, four hundred twenty-three".