978963279 has 16 divisors (see below), whose sum is σ = 1532072448. Its totient is φ = 544288032.

The previous prime is 978963269. The next prime is 978963287. The reversal of 978963279 is 972369879.

It is not a de Polignac number, because 978963279 - 2¹¹ = 978961231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978963259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629187 + ... + 630740.

It is an arithmetic number, because the mean of its divisors is an integer number (95754528).

Almost surely, 2^978963279 is an apocalyptic number.

978963279 is a deficient number, since it is larger than the sum of its proper divisors (553109169).

978963279 is a wasteful number, since it uses less digits than its factorization.

978963279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259974.

The product of its digits is 10287648, while the sum is 60.

The square root of 978963279 is about 31288.3888846965. The cubic root of 978963279 is about 992.9380052955.

The spelling of 978963279 in words is "nine hundred seventy-eight million, nine hundred sixty-three thousand, two hundred seventy-nine".