70689087 has 24 divisors (see below), whose sum is σ = 118441856. Its totient is φ = 39788496.

The previous prime is 70689079. The next prime is 70689103. The reversal of 70689087 is 78098607.

It is not a de Polignac number, because 70689087 - 2³ = 70689079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70699087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4153 + ... + 12594.

Almost surely, 2^70689087 is an apocalyptic number.

70689087 is a deficient number, since it is larger than the sum of its proper divisors (47752769).

70689087 is a wasteful number, since it uses less digits than its factorization.

70689087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16827 (or 16824 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 70689087 is about 8407.6802389244. The cubic root of 70689087 is about 413.4764613728.

The spelling of 70689087 in words is "seventy million, six hundred eighty-nine thousand, eighty-seven".