7213642 has 8 divisors (see below), whose sum is σ = 10836576. Its totient is φ = 3601452.

The previous prime is 7213639. The next prime is 7213667. The reversal of 7213642 is 2463127.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718 + ... + 3865.

It is an arithmetic number, because the mean of its divisors is an integer number (1354572).

Almost surely, 2^7213642 is an apocalyptic number.

7213642 is a deficient number, since it is larger than the sum of its proper divisors (3622934).

7213642 is a wasteful number, since it uses less digits than its factorization.

7213642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5372.

The product of its digits is 2016, while the sum is 25.

The square root of 7213642 is about 2685.8224066382. The cubic root of 7213642 is about 193.2197555909.

Adding to 7213642 its reverse (2463127), we get a palindrome (9676769).

The spelling of 7213642 in words is "seven million, two hundred thirteen thousand, six hundred forty-two".