117572869 has 2 divisors, whose sum is σ = 117572870. Its totient is φ = 117572868.

The previous prime is 117572839. The next prime is 117572881. The reversal of 117572869 is 968275711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105062500 + 12510369 = 10250^2 + 3537^2 .

It is a cyclic number.

It is not a de Polignac number, because 117572869 - 2¹³ = 117564677 is a prime.

It is a super-2 number, since 2×117572869² = 27646759049782322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117572809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58786434 + 58786435.

It is an arithmetic number, because the mean of its divisors is an integer number (58786435).

Almost surely, 2^117572869 is an apocalyptic number.

It is an amenable number.

117572869 is a deficient number, since it is larger than the sum of its proper divisors (1).

117572869 is an equidigital number, since it uses as much as digits as its factorization.

117572869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 46.

The square root of 117572869 is about 10843.1023697095. The cubic root of 117572869 is about 489.8942837326.

The spelling of 117572869 in words is "one hundred seventeen million, five hundred seventy-two thousand, eight hundred sixty-nine".