978850455 has 32 divisors (see below), whose sum is σ = 1798467840. Its totient is φ = 449614080.

The previous prime is 978850387. The next prime is 978850487. The reversal of 978850455 is 554058879.

It is not a de Polignac number, because 978850455 - 2⁸ = 978850199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 978850398 and 978850407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152982 + ... + 159251.

It is an arithmetic number, because the mean of its divisors is an integer number (56202120).

Almost surely, 2^978850455 is an apocalyptic number.

978850455 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

978850455 is a deficient number, since it is larger than the sum of its proper divisors (819617385).

978850455 is a wasteful number, since it uses less digits than its factorization.

978850455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312271.

The product of its (nonzero) digits is 2016000, while the sum is 51.

The square root of 978850455 is about 31286.5858635934. The cubic root of 978850455 is about 992.8998589749.

The spelling of 978850455 in words is "nine hundred seventy-eight million, eight hundred fifty thousand, four hundred fifty-five".