78208010 has 16 divisors (see below), whose sum is σ = 144579816. Its totient is φ = 30437568.

The previous prime is 78208001. The next prime is 78208043. The reversal of 78208010 is 1080287.

It can be written as a sum of positive squares in 4 ways, for example, as 71453209 + 6754801 = 8453^2 + 2599^2 .

It is a super-2 number, since 2×78208010² = 12232985656320200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105317 + ... + 106056.

Almost surely, 2^78208010 is an apocalyptic number.

78208010 is a deficient number, since it is larger than the sum of its proper divisors (66371806).

78208010 is a wasteful number, since it uses less digits than its factorization.

78208010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211417.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 78208010 is about 8843.5292728639. The cubic root of 78208010 is about 427.6453411859.

Adding to 78208010 its reverse (1080287), we get a palindrome (79288297).

The spelling of 78208010 in words is "seventy-eight million, two hundred eight thousand, ten".