70447047 has 12 divisors (see below), whose sum is σ = 103245240. Its totient is φ = 42694960.

The previous prime is 70447043. The next prime is 70447049. The reversal of 70447047 is 74074407.

It is not a de Polignac number, because 70447047 - 2² = 70447043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 70446999 and 70447017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70447043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96672 + ... + 97397.

It is an arithmetic number, because the mean of its divisors is an integer number (8603770).

Almost surely, 2^70447047 is an apocalyptic number.

70447047 is a deficient number, since it is larger than the sum of its proper divisors (32798193).

70447047 is a wasteful number, since it uses less digits than its factorization.

70447047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194094 (or 194083 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 70447047 is about 8393.2739142721. The cubic root of 70447047 is about 413.0040061600.

The spelling of 70447047 in words is "seventy million, four hundred forty-seven thousand, forty-seven".