70066887 has 8 divisors (see below), whose sum is σ = 101915520. Its totient is φ = 42464760.

The previous prime is 70066859. The next prime is 70066891. The reversal of 70066887 is 78866007.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70066887 - 2¹⁴ = 70050503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70066817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061587 + ... + 1061652.

It is an arithmetic number, because the mean of its divisors is an integer number (12739440).

Almost surely, 2^70066887 is an apocalyptic number.

70066887 is a deficient number, since it is larger than the sum of its proper divisors (31848633).

70066887 is a wasteful number, since it uses less digits than its factorization.

70066887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123253.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 70066887 is about 8370.5965737216. The cubic root of 70066887 is about 412.2597550551.

The spelling of 70066887 in words is "seventy million, sixty-six thousand, eight hundred eighty-seven".