70038861 has 12 divisors (see below), whose sum is σ = 99202752. Its totient is φ = 43945408.

The previous prime is 70038853. The next prime is 70038863. The reversal of 70038861 is 16883007.

It is not a de Polignac number, because 70038861 - 2³ = 70038853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70038863) 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 11 ways as a sum of consecutive naturals, for example, 39525 + ... + 41258.

It is an arithmetic number, because the mean of its divisors is an integer number (8266896).

Almost surely, 2^70038861 is an apocalyptic number.

It is an amenable number.

70038861 is a deficient number, since it is larger than the sum of its proper divisors (29163891).

70038861 is a wasteful number, since it uses less digits than its factorization.

70038861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80820 (or 80803 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 70038861 is about 8368.9223320569. The cubic root of 70038861 is about 412.2047812379.

The spelling of 70038861 in words is "seventy million, thirty-eight thousand, eight hundred sixty-one".