7213970 has 8 divisors (see below), whose sum is σ = 12985164. Its totient is φ = 2885584.

The previous prime is 7213937. The next prime is 7214023. The reversal of 7213970 is 793127.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7038409 + 175561 = 2653^2 + 419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360689 + ... + 360708.

Almost surely, 2^7213970 is an apocalyptic number.

7213970 is a deficient number, since it is larger than the sum of its proper divisors (5771194).

7213970 is a wasteful number, since it uses less digits than its factorization.

7213970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721404.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 7213970 is about 2685.8834673157. The cubic root of 7213970 is about 193.2226840756. Note that the first 3 decimals are identical.

The spelling of 7213970 in words is "seven million, two hundred thirteen thousand, nine hundred seventy".