7721046 has 48 divisors (see below), whose sum is σ = 17566848. Its totient is φ = 2448000.

The previous prime is 7721029. The next prime is 7721053. The reversal of 7721046 is 6401277.

It is a super-2 number, since 2×7721046² = 119229102668232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56290 + ... + 56426.

It is an arithmetic number, because the mean of its divisors is an integer number (365976).

Almost surely, 2^7721046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7721046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8783424).

7721046 is an abundant number, since it is smaller than the sum of its proper divisors (9845802).

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

7721046 is a wasteful number, since it uses less digits than its factorization.

7721046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 7721046 is about 2778.6770233332. The cubic root of 7721046 is about 197.6478282220.

The spelling of 7721046 in words is "seven million, seven hundred twenty-one thousand, forty-six".