534659978 has 16 divisors (see below), whose sum is σ = 842486400. Its totient is φ = 253987536.

The previous prime is 534659977. The next prime is 534659989. The reversal of 534659978 is 879956435.

It is a happy number.

It is a super-2 number, since 2×534659978² = 571722584149920968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (534659971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32150 + ... + 45857.

It is an arithmetic number, because the mean of its divisors is an integer number (52655400).

Almost surely, 2^534659978 is an apocalyptic number.

534659978 is a deficient number, since it is larger than the sum of its proper divisors (307826422).

534659978 is a wasteful number, since it uses less digits than its factorization.

534659978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78181.

The product of its digits is 8164800, while the sum is 56.

The square root of 534659978 is about 23122.7156277112. The cubic root of 534659978 is about 811.6321193848.

The spelling of 534659978 in words is "five hundred thirty-four million, six hundred fifty-nine thousand, nine hundred seventy-eight".