70928447 has 2 divisors, whose sum is σ = 70928448. Its totient is φ = 70928446.

The previous prime is 70928393. The next prime is 70928467. The reversal of 70928447 is 74482907.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70928447 - 2¹⁸ = 70666303 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 (70928467) 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, 35464223 + 35464224.

It is an arithmetic number, because the mean of its divisors is an integer number (35464224).

Almost surely, 2^70928447 is an apocalyptic number.

70928447 is a deficient number, since it is larger than the sum of its proper divisors (1).

70928447 is an equidigital number, since it uses as much as digits as its factorization.

70928447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 70928447 is about 8421.9028134977. The cubic root of 70928447 is about 413.9426258718.

The spelling of 70928447 in words is "seventy million, nine hundred twenty-eight thousand, four hundred forty-seven".