9870890177 has 4 divisors (see below), whose sum is σ = 9877556676. Its totient is φ = 9864223680.

The previous prime is 9870890087. The next prime is 9870890201. The reversal of 9870890177 is 7710980789.

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 7642955776 + 2227934401 = 87424^2 + 47201^2 .

It is a cyclic number.

It is not a de Polignac number, because 9870890177 - 2¹⁶ = 9870824641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9870892177) 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, 3331028 + ... + 3333989.

It is an arithmetic number, because the mean of its divisors is an integer number (2469389169).

Almost surely, 2^9870890177 is an apocalyptic number.

It is an amenable number.

9870890177 is a deficient number, since it is larger than the sum of its proper divisors (6666499).

9870890177 is a wasteful number, since it uses less digits than its factorization.

9870890177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6666498.

The product of its (nonzero) digits is 1778112, while the sum is 56.

The square root of 9870890177 is about 99352.3536560659. The cubic root of 9870890177 is about 2145.1225419239.

The spelling of 9870890177 in words is "nine billion, eight hundred seventy million, eight hundred ninety thousand, one hundred seventy-seven".