978463 has 2 divisors, whose sum is σ = 978464. Its totient is φ = 978462.

The previous prime is 978457. The next prime is 978473. The reversal of 978463 is 364879.

It is a weak prime.

It is an emirp because it is prime and its reverse (364879) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-978463 is a prime.

It is an Ulam number.

978463 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (978403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489231 + 489232.

It is an arithmetic number, because the mean of its divisors is an integer number (489232).

2⁹⁷⁸⁴⁶³ is an apocalyptic number.

978463 is a deficient number, since it is larger than the sum of its proper divisors (1).

978463 is an equidigital number, since it uses as much as digits as its factorization.

978463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 978463 is about 989.1728868100. The cubic root of 978463 is about 99.2768836310.

It can be divided in two parts, 978 and 463, that added together give a palindrome (1441).

The spelling of 978463 in words is "nine hundred seventy-eight thousand, four hundred sixty-three".