752117249 has 4 divisors (see below), whose sum is σ = 809972436. Its totient is φ = 694262064.

The previous prime is 752117221. The next prime is 752117263. The reversal of 752117249 is 942711257.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 463627024 + 288490225 = 21532^2 + 16985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-752117249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (752117269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28927574 + ... + 28927599.

It is an arithmetic number, because the mean of its divisors is an integer number (202493109).

Almost surely, 2^752117249 is an apocalyptic number.

It is an amenable number.

752117249 is a deficient number, since it is larger than the sum of its proper divisors (57855187).

752117249 is a wasteful number, since it uses less digits than its factorization.

752117249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57855186.

The product of its digits is 35280, while the sum is 38.

The square root of 752117249 is about 27424.7561338292. The cubic root of 752117249 is about 909.4144479984.

The spelling of 752117249 in words is "seven hundred fifty-two million, one hundred seventeen thousand, two hundred forty-nine".