70434523 has 2 divisors, whose sum is σ = 70434524. Its totient is φ = 70434522.

The previous prime is 70434499. The next prime is 70434527. The reversal of 70434523 is 32543407.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70434523 is a prime.

It is a super-2 number, since 2×70434523² = 9922044060475058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70434491 and 70434500.

It is not a weakly prime, because it can be changed into another prime (70434527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35217261 + 35217262.

It is an arithmetic number, because the mean of its divisors is an integer number (35217262).

Almost surely, 2^70434523 is an apocalyptic number.

70434523 is a deficient number, since it is larger than the sum of its proper divisors (1).

70434523 is an equidigital number, since it uses as much as digits as its factorization.

70434523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 70434523 is about 8392.5278075202. The cubic root of 70434523 is about 412.9795302407.

The spelling of 70434523 in words is "seventy million, four hundred thirty-four thousand, five hundred twenty-three".