978342967 has 6 divisors (see below), whose sum is σ = 1138072488. Its totient is φ = 838579644.

The previous prime is 978342931. The next prime is 978342997. The reversal of 978342967 is 769243879.

It is not a de Polignac number, because 978342967 - 2¹¹ = 978340919 is a prime.

It is a super-2 number, since 2×978342967² = 1914309922156726178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978342997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9983043 + ... + 9983140.

It is an arithmetic number, because the mean of its divisors is an integer number (189678748).

Almost surely, 2^978342967 is an apocalyptic number.

978342967 is a deficient number, since it is larger than the sum of its proper divisors (159729521).

978342967 is a wasteful number, since it uses less digits than its factorization.

978342967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19966197 (or 19966190 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 55.

The square root of 978342967 is about 31278.4744992463. The cubic root of 978342967 is about 992.7282386603.

The spelling of 978342967 in words is "nine hundred seventy-eight million, three hundred forty-two thousand, nine hundred sixty-seven".