70671447 has 56 divisors (see below), whose sum is σ = 132209280. Its totient is φ = 36683280.

The previous prime is 70671437. The next prime is 70671449. The reversal of 70671447 is 74417607.

It is not a de Polignac number, because 70671447 - 2⁶ = 70671383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70671449) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 55504 + ... + 56762.

It is an arithmetic number, because the mean of its divisors is an integer number (2360880).

Almost surely, 2^70671447 is an apocalyptic number.

70671447 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

70671447 is a deficient number, since it is larger than the sum of its proper divisors (61537833).

70671447 is a wasteful number, since it uses less digits than its factorization.

70671447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 70671447 is about 8406.6311326238. The cubic root of 70671447 is about 413.4420650614.

The spelling of 70671447 in words is "seventy million, six hundred seventy-one thousand, four hundred forty-seven".