7951216 has 80 divisors (see below), whose sum is σ = 19554304. Its totient is φ = 3048192.

The previous prime is 7951213. The next prime is 7951243. The reversal of 7951216 is 6121597.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7951211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62545 + ... + 62671.

Almost surely, 2^7951216 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 7951216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9777152).

7951216 is an abundant number, since it is smaller than the sum of its proper divisors (11603088).

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

7951216 is a wasteful number, since it uses less digits than its factorization.

7951216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 192 counting only the distinct ones).

The product of its digits is 3780, while the sum is 31.

The square root of 7951216 is about 2819.7900631075. The cubic root of 7951216 is about 199.5926375090.

The spelling of 7951216 in words is "seven million, nine hundred fifty-one thousand, two hundred sixteen".