975638 has 4 divisors (see below), whose sum is σ = 1463460. Its totient is φ = 487818.

The previous prime is 975629. The next prime is 975643. The reversal of 975638 is 836579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 836579 = 23 ⋅36373.

It is a congruent number.

It is an unprimeable number.

975638 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 243908 + ... + 243911.

It is an arithmetic number, because the mean of its divisors is an integer number (365865).

2⁹⁷⁵⁶³⁸ is an apocalyptic number.

975638 is a deficient number, since it is larger than the sum of its proper divisors (487822).

975638 is a wasteful number, since it uses less digits than its factorization.

975638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487821.

The product of its digits is 45360, while the sum is 38.

The square root of 975638 is about 987.7438939320. The cubic root of 975638 is about 99.1812480814.

The spelling of 975638 in words is "nine hundred seventy-five thousand, six hundred thirty-eight".