977148 has 18 divisors (see below), whose sum is σ = 2470104. Its totient is φ = 325704.

The previous prime is 977147. The next prime is 977149. The reversal of 977148 is 841779.

It is an interprime number because it is at equal distance from previous prime (977147) and next prime (977149).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 27143 = 977148 / (9 + 7 + 7 + 1 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13536 + ... + 13607.

It is an arithmetic number, because the mean of its divisors is an integer number (137228).

2⁹⁷⁷¹⁴⁸ is an apocalyptic number.

It is an amenable number.

977148 is an abundant number, since it is smaller than the sum of its proper divisors (1492956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

977148 is a wasteful number, since it uses less digits than its factorization.

977148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27153 (or 27148 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 977148 is about 988.5079665840. The cubic root of 977148 is about 99.2323894842.

The spelling of 977148 in words is "nine hundred seventy-seven thousand, one hundred forty-eight".