70449047 has 4 divisors (see below), whose sum is σ = 70662216. Its totient is φ = 70235880.

The previous prime is 70449011. The next prime is 70449061. The reversal of 70449047 is 74094407.

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 70449047 - 2¹⁰ = 70448023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70448998 and 70449016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70449947) 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, 106088 + ... + 106749.

It is an arithmetic number, because the mean of its divisors is an integer number (17665554).

Almost surely, 2^70449047 is an apocalyptic number.

70449047 is a deficient number, since it is larger than the sum of its proper divisors (213169).

70449047 is a wasteful number, since it uses less digits than its factorization.

70449047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213168.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 70449047 is about 8393.3930564462. The cubic root of 70449047 is about 413.0079145339.

The spelling of 70449047 in words is "seventy million, four hundred forty-nine thousand, forty-seven".