978970769 has 8 divisors (see below), whose sum is σ = 1119116928. Its totient is φ = 838897920.

The previous prime is 978970739. The next prime is 978970799. The reversal of 978970769 is 967079879.

It is a happy number.

978970769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (978970739) and next prime (978970799).

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

It is not a de Polignac number, because 978970769 - 2²⁰ = 977922193 is a prime.

It is a super-2 number, since 2×978970769² = 1916767533112902722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (978970739) 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, 14129 + ... + 46449.

It is an arithmetic number, because the mean of its divisors is an integer number (139889616).

Almost surely, 2^978970769 is an apocalyptic number.

It is an amenable number.

978970769 is a deficient number, since it is larger than the sum of its proper divisors (140146159).

978970769 is a wasteful number, since it uses less digits than its factorization.

978970769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36655.

The product of its (nonzero) digits is 12002256, while the sum is 62.

The square root of 978970769 is about 31288.5085774314. The cubic root of 978970769 is about 992.9405375957.

The spelling of 978970769 in words is "nine hundred seventy-eight million, nine hundred seventy thousand, seven hundred sixty-nine".