978796869 has 8 divisors (see below), whose sum is σ = 1305208800. Its totient is φ = 652458096.

The previous prime is 978796867. The next prime is 978796873. The reversal of 978796869 is 968697879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 978796869 - 2¹ = 978796867 is a prime.

It is a super-2 number, since 2×978796869² = 1916086621528406322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978796867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35707 + ... + 56855.

It is an arithmetic number, because the mean of its divisors is an integer number (163151100).

Almost surely, 2^978796869 is an apocalyptic number.

It is an amenable number.

978796869 is a deficient number, since it is larger than the sum of its proper divisors (326411931).

978796869 is a wasteful number, since it uses less digits than its factorization.

978796869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36579.

The product of its digits is 82301184, while the sum is 69.

The square root of 978796869 is about 31285.7294784699. The cubic root of 978796869 is about 992.8817402716.

The spelling of 978796869 in words is "nine hundred seventy-eight million, seven hundred ninety-six thousand, eight hundred sixty-nine".