70213973 has 4 divisors (see below), whose sum is σ = 70256448. Its totient is φ = 70171500.

The previous prime is 70213939. The next prime is 70214041. The reversal of 70213973 is 37931207.

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 70213973 - 2¹⁰ = 70212949 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 (70213903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18653 + ... + 22098.

It is an arithmetic number, because the mean of its divisors is an integer number (17564112).

Almost surely, 2^70213973 is an apocalyptic number.

It is an amenable number.

70213973 is a deficient number, since it is larger than the sum of its proper divisors (42475).

70213973 is a wasteful number, since it uses less digits than its factorization.

70213973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42474.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 70213973 is about 8379.3778408662. The cubic root of 70213973 is about 412.5480284450.

The spelling of 70213973 in words is "seventy million, two hundred thirteen thousand, nine hundred seventy-three".