70318973 has 4 divisors (see below), whose sum is σ = 71510880. Its totient is φ = 69127068.

The previous prime is 70318957. The next prime is 70319017. The reversal of 70318973 is 37981307.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70318973 - 2⁴ = 70318957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70318903) 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, 595865 + ... + 595982.

It is an arithmetic number, because the mean of its divisors is an integer number (17877720).

Almost surely, 2^70318973 is an apocalyptic number.

It is an amenable number.

70318973 is a deficient number, since it is larger than the sum of its proper divisors (1191907).

70318973 is a wasteful number, since it uses less digits than its factorization.

70318973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191906.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 70318973 is about 8385.6408818885. The cubic root of 70318973 is about 412.7535714269.

The spelling of 70318973 in words is "seventy million, three hundred eighteen thousand, nine hundred seventy-three".