70447339 has 4 divisors (see below), whose sum is σ = 70468456. Its totient is φ = 70426224.

The previous prime is 70447331. The next prime is 70447343. The reversal of 70447339 is 93374407.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70447339 - 2³ = 70447331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70447298 and 70447307.

It is not an unprimeable number, because it can be changed into a prime (70447331) 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, 4329 + ... + 12634.

It is an arithmetic number, because the mean of its divisors is an integer number (17617114).

Almost surely, 2^70447339 is an apocalyptic number.

70447339 is a deficient number, since it is larger than the sum of its proper divisors (21117).

70447339 is a wasteful number, since it uses less digits than its factorization.

70447339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21116.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 70447339 is about 8393.2913091349. The cubic root of 70447339 is about 413.0045767872.

The spelling of 70447339 in words is "seventy million, four hundred forty-seven thousand, three hundred thirty-nine".