70331039 has 4 divisors (see below), whose sum is σ = 71380824. Its totient is φ = 69281256.

The previous prime is 70331029. The next prime is 70331059. The reversal of 70331039 is 93013307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93013307 = 17 ⋅5471371.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70331039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70330999 and 70331017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70331029) 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 3 ways as a sum of consecutive naturals, for example, 524792 + ... + 524925.

It is an arithmetic number, because the mean of its divisors is an integer number (17845206).

Almost surely, 2^70331039 is an apocalyptic number.

70331039 is a deficient number, since it is larger than the sum of its proper divisors (1049785).

70331039 is a wasteful number, since it uses less digits than its factorization.

70331039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049784.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 70331039 is about 8386.3602951459. The cubic root of 70331039 is about 412.7771781415. Note that the first 3 decimals are identical.

The spelling of 70331039 in words is "seventy million, three hundred thirty-one thousand, thirty-nine".