70473215 has 4 divisors (see below), whose sum is σ = 84567864. Its totient is φ = 56378568.

The previous prime is 70473209. The next prime is 70473253. The reversal of 70473215 is 51237407.

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 70473215 - 2²⁰ = 69424639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7047317 + ... + 7047326.

It is an arithmetic number, because the mean of its divisors is an integer number (21141966).

Almost surely, 2^70473215 is an apocalyptic number.

70473215 is a deficient number, since it is larger than the sum of its proper divisors (14094649).

70473215 is a wasteful number, since it uses less digits than its factorization.

70473215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14094648.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 70473215 is about 8394.8326368070. The cubic root of 70473215 is about 413.0551374773.

The spelling of 70473215 in words is "seventy million, four hundred seventy-three thousand, two hundred fifteen".