977801 has 6 divisors (see below), whose sum is σ = 1074906. Its totient is φ = 888800.

The previous prime is 977791. The next prime is 977803. The reversal of 977801 is 108779.

It can be written as a sum of positive squares in only one way, i.e., 774400 + 203401 = 880^2 + 451^2 .

It is not a de Polignac number, because 977801 - 2¹⁰ = 976777 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (977803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3920 + ... + 4161.

It is an arithmetic number, because the mean of its divisors is an integer number (179151).

2⁹⁷⁷⁸⁰¹ is an apocalyptic number.

It is an amenable number.

977801 is a deficient number, since it is larger than the sum of its proper divisors (97105).

977801 is a wasteful number, since it uses less digits than its factorization.

977801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8103 (or 8092 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 977801 is about 988.8382071906. The cubic root of 977801 is about 99.2544892825.

The spelling of 977801 in words is "nine hundred seventy-seven thousand, eight hundred one".