7791552 has 98 divisors (see below), whose sum is σ = 23320248. Its totient is φ = 2581632.

The previous prime is 7791551. The next prime is 7791569. The reversal of 7791552 is 2551977.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7791551) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 46573 + ... + 46739.

Almost surely, 2^7791552 is an apocalyptic number.

7791552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7791552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11660124).

7791552 is an abundant number, since it is smaller than the sum of its proper divisors (15528696).

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

7791552 is an equidigital number, since it uses as much as digits as its factorization.

7791552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 172 counting only the distinct ones).

The product of its digits is 22050, while the sum is 36.

The square root of 7791552 is about 2791.3351643971. The cubic root of 7791552 is about 198.2476240699.

The spelling of 7791552 in words is "seven million, seven hundred ninety-one thousand, five hundred fifty-two".