977109 has 36 divisors (see below), whose sum is σ = 1679904. Its totient is φ = 502656.

The previous prime is 977107. The next prime is 977147. The reversal of 977109 is 901779.

It is not a de Polignac number, because 977109 - 2¹ = 977107 is a prime.

977109 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 977109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977107) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42472 + ... + 42494.

It is an arithmetic number, because the mean of its divisors is an integer number (46664).

2⁹⁷⁷¹⁰⁹ is an apocalyptic number.

It is an amenable number.

977109 is a deficient number, since it is larger than the sum of its proper divisors (702795).

977109 is a wasteful number, since it uses less digits than its factorization.

977109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 3969, while the sum is 33.

The square root of 977109 is about 988.4882396873. The cubic root of 977109 is about 99.2310692765.

The spelling of 977109 in words is "nine hundred seventy-seven thousand, one hundred nine".