70028587 has 2 divisors, whose sum is σ = 70028588. Its totient is φ = 70028586.

The previous prime is 70028573. The next prime is 70028599. The reversal of 70028587 is 78582007.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70028587 - 2⁷ = 70028459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70028527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35014293 + 35014294.

It is an arithmetic number, because the mean of its divisors is an integer number (35014294).

Almost surely, 2^70028587 is an apocalyptic number.

70028587 is a deficient number, since it is larger than the sum of its proper divisors (1).

70028587 is an equidigital number, since it uses as much as digits as its factorization.

70028587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 70028587 is about 8368.3084909676. The cubic root of 70028587 is about 412.1846248135.

The spelling of 70028587 in words is "seventy million, twenty-eight thousand, five hundred eighty-seven".