7213967 has 4 divisors (see below), whose sum is σ = 7638336. Its totient is φ = 6789600.

The previous prime is 7213937. The next prime is 7214023. The reversal of 7213967 is 7693127.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7693127 = 13 ⋅591779.

It is a cyclic number.

It is not a de Polignac number, because 7213967 - 2⁶ = 7213903 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 (7213937) 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, 212159 + ... + 212192.

It is an arithmetic number, because the mean of its divisors is an integer number (1909584).

Almost surely, 2^7213967 is an apocalyptic number.

7213967 is a deficient number, since it is larger than the sum of its proper divisors (424369).

7213967 is a wasteful number, since it uses less digits than its factorization.

7213967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424368.

The product of its digits is 15876, while the sum is 35.

The square root of 7213967 is about 2685.8829088402. The cubic root of 7213967 is about 193.2226572910. Note that the first 3 decimals are identical.

The spelling of 7213967 in words is "seven million, two hundred thirteen thousand, nine hundred sixty-seven".