70029387 has 8 divisors (see below), whose sum is σ = 103747280. Its totient is φ = 46686240.

The previous prime is 70029373. The next prime is 70029397. The reversal of 70029387 is 78392007.

It is not a de Polignac number, because 70029387 - 2⁴ = 70029371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70029317) 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, 1296814 + ... + 1296867.

It is an arithmetic number, because the mean of its divisors is an integer number (12968410).

Almost surely, 2^70029387 is an apocalyptic number.

70029387 is a deficient number, since it is larger than the sum of its proper divisors (33717893).

70029387 is a wasteful number, since it uses less digits than its factorization.

70029387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593690 (or 2593684 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 70029387 is about 8368.3562902161. The cubic root of 70029387 is about 412.1861943936.

The spelling of 70029387 in words is "seventy million, twenty-nine thousand, three hundred eighty-seven".