977141677 has 4 divisors (see below), whose sum is σ = 984274236. Its totient is φ = 970009120.

The previous prime is 977141651. The next prime is 977141681. The reversal of 977141677 is 776141779.

It is a happy number.

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 750157321 + 226984356 = 27389^2 + 15066^2 .

It is a cyclic number.

It is not a de Polignac number, because 977141677 - 2¹¹ = 977139629 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 977141677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977141617) 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, 3566074 + ... + 3566347.

It is an arithmetic number, because the mean of its divisors is an integer number (246068559).

Almost surely, 2^977141677 is an apocalyptic number.

It is an amenable number.

977141677 is a deficient number, since it is larger than the sum of its proper divisors (7132559).

977141677 is a wasteful number, since it uses less digits than its factorization.

977141677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132558.

The product of its digits is 518616, while the sum is 49.

The square root of 977141677 is about 31259.2654584205. The cubic root of 977141677 is about 992.3217544366.

The spelling of 977141677 in words is "nine hundred seventy-seven million, one hundred forty-one thousand, six hundred seventy-seven".