70804687 has 2 divisors, whose sum is σ = 70804688. Its totient is φ = 70804686.

The previous prime is 70804681. The next prime is 70804691. The reversal of 70804687 is 78640807.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70804687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70804681) 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, 35402343 + 35402344.

It is an arithmetic number, because the mean of its divisors is an integer number (35402344).

Almost surely, 2^70804687 is an apocalyptic number.

70804687 is a deficient number, since it is larger than the sum of its proper divisors (1).

70804687 is an equidigital number, since it uses as much as digits as its factorization.

70804687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 70804687 is about 8414.5520974084. The cubic root of 70804687 is about 413.7017288057.

The spelling of 70804687 in words is "seventy million, eight hundred four thousand, six hundred eighty-seven".