78260830 has 16 divisors (see below), whose sum is σ = 140977584. Its totient is φ = 31280320.

The previous prime is 78260803. The next prime is 78260837. The reversal of 78260830 is 3806287.

It is a happy number.

It is a super-2 number, since 2×78260830² = 12249515024577800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78260837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17085 + ... + 21175.

It is an arithmetic number, because the mean of its divisors is an integer number (8811099).

Almost surely, 2^78260830 is an apocalyptic number.

78260830 is a deficient number, since it is larger than the sum of its proper divisors (62716754).

78260830 is a wasteful number, since it uses less digits than its factorization.

78260830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 78260830 is about 8846.5151330905. The cubic root of 78260830 is about 427.7415936611.

The spelling of 78260830 in words is "seventy-eight million, two hundred sixty thousand, eight hundred thirty".