70066287 has 12 divisors (see below), whose sum is σ = 101501400. Its totient is φ = 46574928.

The previous prime is 70066277. The next prime is 70066309. The reversal of 70066287 is 78266007.

It is not a de Polignac number, because 70066287 - 2¹² = 70062191 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70066277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8013 + ... + 14294.

It is an arithmetic number, because the mean of its divisors is an integer number (8458450).

Almost surely, 2^70066287 is an apocalyptic number.

70066287 is a deficient number, since it is larger than the sum of its proper divisors (31435113).

70066287 is a wasteful number, since it uses less digits than its factorization.

70066287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22662 (or 22659 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 70066287 is about 8370.5607339055. The cubic root of 70066287 is about 412.2585782912.

The spelling of 70066287 in words is "seventy million, sixty-six thousand, two hundred eighty-seven".