7752249 has 6 divisors (see below), whose sum is σ = 11197706. Its totient is φ = 5168160.

The previous prime is 7752229. The next prime is 7752253. The reversal of 7752249 is 9422577.

7752249 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5978025 + 1774224 = 2445^2 + 1332^2 .

It is not a de Polignac number, because 7752249 - 2¹¹ = 7750201 is a prime.

It is an Ulam number.

It is a Duffinian number.

7752249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7752229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 430672 + ... + 430689.

Almost surely, 2^7752249 is an apocalyptic number.

It is an amenable number.

7752249 is a deficient number, since it is larger than the sum of its proper divisors (3445457).

7752249 is a wasteful number, since it uses less digits than its factorization.

7752249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861367 (or 861364 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 7752249 is about 2784.2860844389. The cubic root of 7752249 is about 197.9137212095.

It can be divided in two parts, 7752 and 249, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 7752249 in words is "seven million, seven hundred fifty-two thousand, two hundred forty-nine".