70825387 has 2 divisors, whose sum is σ = 70825388. Its totient is φ = 70825386.

The previous prime is 70825379. The next prime is 70825439. The reversal of 70825387 is 78352807.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70825387 - 2³ = 70825379 is a prime.

It is not a weakly prime, because it can be changed into another prime (70822387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35412693 + 35412694.

It is an arithmetic number, because the mean of its divisors is an integer number (35412694).

Almost surely, 2^70825387 is an apocalyptic number.

70825387 is a deficient number, since it is larger than the sum of its proper divisors (1).

70825387 is an equidigital number, since it uses as much as digits as its factorization.

70825387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 70825387 is about 8415.7820195155. The cubic root of 70825387 is about 413.7420405974.

The spelling of 70825387 in words is "seventy million, eight hundred twenty-five thousand, three hundred eighty-seven".