972198769 has 8 divisors (see below), whose sum is σ = 1000164672. Its totient is φ = 944589360.

The previous prime is 972198757. The next prime is 972198803. The reversal of 972198769 is 967891279.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 972198769 - 2⁷ = 972198641 is a prime.

It is a super-2 number, since 2×972198769² = 1890340892890230722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972198749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83587 + ... + 94504.

It is an arithmetic number, because the mean of its divisors is an integer number (125020584).

Almost surely, 2^972198769 is an apocalyptic number.

It is an amenable number.

972198769 is a deficient number, since it is larger than the sum of its proper divisors (27965903).

972198769 is a wasteful number, since it uses less digits than its factorization.

972198769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178247.

The product of its digits is 3429216, while the sum is 58.

The square root of 972198769 is about 31180.1021326101. The cubic root of 972198769 is about 990.6456927799.

The spelling of 972198769 in words is "nine hundred seventy-two million, one hundred ninety-eight thousand, seven hundred sixty-nine".