977999161 has 8 divisors (see below), whose sum is σ = 1015761600. Its totient is φ = 940506000.

The previous prime is 977999159. The next prime is 977999221. The reversal of 977999161 is 161999779.

977999161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 977999161 - 2¹ = 977999159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 977999096 and 977999105.

It is not an unprimeable number, because it can be changed into a prime (977999101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59901 + ... + 74458.

It is an arithmetic number, because the mean of its divisors is an integer number (126970200).

Almost surely, 2^977999161 is an apocalyptic number.

It is an amenable number.

977999161 is a deficient number, since it is larger than the sum of its proper divisors (37762439).

977999161 is a wasteful number, since it uses less digits than its factorization.

977999161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134639.

The product of its digits is 1928934, while the sum is 58.

The square root of 977999161 is about 31272.9781280901. The cubic root of 977999161 is about 992.6119379613.

The spelling of 977999161 in words is "nine hundred seventy-seven million, nine hundred ninety-nine thousand, one hundred sixty-one".