70308427 has 4 divisors (see below), whose sum is σ = 80352496. Its totient is φ = 60264360.

The previous prime is 70308421. The next prime is 70308431. The reversal of 70308427 is 72480307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72480307 = 19 ⋅3814753.

It is a cyclic number.

It is not a de Polignac number, because 70308427 - 2³ = 70308419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70308421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5022024 + ... + 5022037.

It is an arithmetic number, because the mean of its divisors is an integer number (20088124).

Almost surely, 2^70308427 is an apocalyptic number.

70308427 is a deficient number, since it is larger than the sum of its proper divisors (10044069).

70308427 is a wasteful number, since it uses less digits than its factorization.

70308427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10044068.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 70308427 is about 8385.0120453104. The cubic root of 70308427 is about 412.7329363285.

The spelling of 70308427 in words is "seventy million, three hundred eight thousand, four hundred twenty-seven".