972801899 has 4 divisors (see below), whose sum is σ = 976122336. Its totient is φ = 969481464.

The previous prime is 972801883. The next prime is 972801923. The reversal of 972801899 is 998108279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998108279 = 7 ⋅142586897.

It is a cyclic number.

It is not a de Polignac number, because 972801899 - 2⁴ = 972801883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 972801899.

It is not an unprimeable number, because it can be changed into a prime (972801199) 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, 1659779 + ... + 1660364.

It is an arithmetic number, because the mean of its divisors is an integer number (244030584).

Almost surely, 2^972801899 is an apocalyptic number.

972801899 is a deficient number, since it is larger than the sum of its proper divisors (3320437).

972801899 is a wasteful number, since it uses less digits than its factorization.

972801899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320436.

The product of its (nonzero) digits is 653184, while the sum is 53.

The square root of 972801899 is about 31189.7723460752. The cubic root of 972801899 is about 990.8505084487.

The spelling of 972801899 in words is "nine hundred seventy-two million, eight hundred one thousand, eight hundred ninety-nine".