70087487 has 2 divisors, whose sum is σ = 70087488. Its totient is φ = 70087486.

The previous prime is 70087477. The next prime is 70087541. The reversal of 70087487 is 78478007.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (78478007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70087487 - 2⁴ = 70087471 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 (70087477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35043743 + 35043744.

It is an arithmetic number, because the mean of its divisors is an integer number (35043744).

Almost surely, 2^70087487 is an apocalyptic number.

70087487 is a deficient number, since it is larger than the sum of its proper divisors (1).

70087487 is an equidigital number, since it uses as much as digits as its factorization.

70087487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 70087487 is about 8371.8269810120. The cubic root of 70087487 is about 412.3001532098.

The spelling of 70087487 in words is "seventy million, eighty-seven thousand, four hundred eighty-seven".