7139916 has 72 divisors (see below), whose sum is σ = 21359520. Its totient is φ = 1967616.

The previous prime is 7139903. The next prime is 7139917. The reversal of 7139916 is 6199317.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7139917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6820 + ... + 7796.

It is an arithmetic number, because the mean of its divisors is an integer number (296660).

Almost surely, 2^7139916 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 7139916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10679760).

7139916 is an abundant number, since it is smaller than the sum of its proper divisors (14219604).

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

7139916 is a wasteful number, since it uses less digits than its factorization.

7139916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023 (or 1018 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 7139916 is about 2672.0621250263. The cubic root of 7139916 is about 192.5592419002.

The spelling of 7139916 in words is "seven million, one hundred thirty-nine thousand, nine hundred sixteen".