978753 has 4 divisors (see below), whose sum is σ = 1305008. Its totient is φ = 652500.

The previous prime is 978749. The next prime is 978773. The reversal of 978753 is 357879.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 357879 = 3 ⋅119293.

It is not a de Polignac number, because 978753 - 2² = 978749 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (978713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163123 + ... + 163128.

It is an arithmetic number, because the mean of its divisors is an integer number (326252).

2⁹⁷⁸⁷⁵³ is an apocalyptic number.

It is an amenable number.

978753 is a deficient number, since it is larger than the sum of its proper divisors (326255).

978753 is a wasteful number, since it uses less digits than its factorization.

978753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326254.

The product of its digits is 52920, while the sum is 39.

The square root of 978753 is about 989.3194630654. The cubic root of 978753 is about 99.2866906625.

The spelling of 978753 in words is "nine hundred seventy-eight thousand, seven hundred fifty-three".