978378033 has 16 divisors (see below), whose sum is σ = 1385112960. Its totient is φ = 612162816.

The previous prime is 978378007. The next prime is 978378091. The reversal of 978378033 is 330873879.

978378033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 978378033 - 2¹⁰ = 978377009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (978378433) 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, 8410 + ... + 45027.

It is an arithmetic number, because the mean of its divisors is an integer number (86569560).

Almost surely, 2^978378033 is an apocalyptic number.

It is an amenable number.

978378033 is a deficient number, since it is larger than the sum of its proper divisors (406734927).

978378033 is a wasteful number, since it uses less digits than its factorization.

978378033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53816.

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 978378033 is about 31279.0350394637. The cubic root of 978378033 is about 992.7400990521.

The spelling of 978378033 in words is "nine hundred seventy-eight million, three hundred seventy-eight thousand, thirty-three".