70700039 has 4 divisors (see below), whose sum is σ = 72034056. Its totient is φ = 69366024.

The previous prime is 70700033. The next prime is 70700051. The reversal of 70700039 is 93000707.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93000707 = 23 ⋅4043509.

It is a cyclic number.

It is not a de Polignac number, because 70700039 - 2²⁴ = 53922823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70699990 and 70700017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70700033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666929 + ... + 667034.

It is an arithmetic number, because the mean of its divisors is an integer number (18008514).

Almost surely, 2^70700039 is an apocalyptic number.

70700039 is a deficient number, since it is larger than the sum of its proper divisors (1334017).

70700039 is a wasteful number, since it uses less digits than its factorization.

70700039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334016.

The product of its (nonzero) digits is 1323, while the sum is 26.

The square root of 70700039 is about 8408.3315229598. The cubic root of 70700039 is about 413.4978138453.

The spelling of 70700039 in words is "seventy million, seven hundred thousand, thirty-nine".