971378 has 4 divisors (see below), whose sum is σ = 1457070. Its totient is φ = 485688.

The previous prime is 971371. The next prime is 971381. The reversal of 971378 is 873179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873179 = 89 ⋅9811.

It can be written as a sum of positive squares in only one way, i.e., 946729 + 24649 = 973^2 + 157^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (971371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242843 + ... + 242846.

2⁹⁷¹³⁷⁸ is an apocalyptic number.

971378 is a deficient number, since it is larger than the sum of its proper divisors (485692).

971378 is a wasteful number, since it uses less digits than its factorization.

971378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485691.

The product of its digits is 10584, while the sum is 35.

The square root of 971378 is about 985.5851054069. The cubic root of 971378 is about 99.0366833414.

The spelling of 971378 in words is "nine hundred seventy-one thousand, three hundred seventy-eight".