70039 has 2 divisors, whose sum is σ = 70040. Its totient is φ = 70038.

The previous prime is 70019. The next prime is 70051. The reversal of 70039 is 93007.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70039 - 2⁷ = 69911 is a prime.

It is equal to p₆₉₄₀ and since 70039 and 6940 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 69998 and 70025.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35019 + 35020.

It is an arithmetic number, because the mean of its divisors is an integer number (35020).

2⁷⁰⁰³⁹ is an apocalyptic number.

70039 is a deficient number, since it is larger than the sum of its proper divisors (1).

70039 is an equidigital number, since it uses as much as digits as its factorization.

70039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 70039 is about 264.6488239158. The cubic root of 70039 is about 41.2205053927.

The spelling of 70039 in words is "seventy thousand, thirty-nine".