7213536 has 180 divisors, whose sum is σ = 24332616. Its totient is φ = 2090880.

The previous prime is 7213487. The next prime is 7213541. The reversal of 7213536 is 6353127.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 313621 + ... + 313643.

Almost surely, 2^7213536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7213536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12166308).

7213536 is an abundant number, since it is smaller than the sum of its proper divisors (17119080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7213536 is a wasteful number, since it uses less digits than its factorization.

7213536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 39 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 7213536 is about 2685.8026733176. The cubic root of 7213536 is about 193.2188091714.

The spelling of 7213536 in words is "seven million, two hundred thirteen thousand, five hundred thirty-six".