8977310221 has 4 divisors (see below), whose sum is σ = 9793429344. Its totient is φ = 8161191100.

The previous prime is 8977310197. The next prime is 8977310233. The reversal of 8977310221 is 1220137798.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8977310221 - 2¹¹ = 8977308173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8977316221) 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, 408059545 + ... + 408059566.

It is an arithmetic number, because the mean of its divisors is an integer number (2448357336).

Almost surely, 2^8977310221 is an apocalyptic number.

It is an amenable number.

8977310221 is a deficient number, since it is larger than the sum of its proper divisors (816119123).

8977310221 is a wasteful number, since it uses less digits than its factorization.

8977310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816119122.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 8977310221 is about 94748.6687030483. The cubic root of 8977310221 is about 2078.3343282310.

The spelling of 8977310221 in words is "eight billion, nine hundred seventy-seven million, three hundred ten thousand, two hundred twenty-one".