9977049001 has 4 divisors (see below), whose sum is σ = 10246699012. Its totient is φ = 9707398992.

The previous prime is 9977048987. The next prime is 9977049011. The reversal of 9977049001 is 1009407799.

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 5094533376 + 4882515625 = 71376^2 + 69875^2 .

It is a cyclic number.

It is not a de Polignac number, because 9977049001 - 2⁹ = 9977048489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9977049011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134824950 + ... + 134825023.

It is an arithmetic number, because the mean of its divisors is an integer number (2561674753).

Almost surely, 2^9977049001 is an apocalyptic number.

It is an amenable number.

9977049001 is a deficient number, since it is larger than the sum of its proper divisors (269650011).

9977049001 is a wasteful number, since it uses less digits than its factorization.

9977049001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269650010.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 9977049001 is about 99885.1790857883. The cubic root of 9977049001 is about 2152.7852132023.

The spelling of 9977049001 in words is "nine billion, nine hundred seventy-seven million, forty-nine thousand, one".