70387071 has 8 divisors (see below), whose sum is σ = 94980480. Its totient is φ = 46359192.

The previous prime is 70387069. The next prime is 70387117. The reversal of 70387071 is 17078307.

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

It is not a de Polignac number, because 70387071 - 2¹ = 70387069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70387271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141091 + ... + 141588.

It is an arithmetic number, because the mean of its divisors is an integer number (11872560).

Almost surely, 2^70387071 is an apocalyptic number.

70387071 is a deficient number, since it is larger than the sum of its proper divisors (24593409).

70387071 is a wasteful number, since it uses less digits than its factorization.

70387071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282765.

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 70387071 is about 8389.7002926207. The cubic root of 70387071 is about 412.8867674577.

The spelling of 70387071 in words is "seventy million, three hundred eighty-seven thousand, seventy-one".