78334630 has 16 divisors (see below), whose sum is σ = 153820944. Its totient is φ = 28485280.

The previous prime is 78334609. The next prime is 78334637. The reversal of 78334630 is 3643387.

It is a happy number.

It is a super-2 number, since 2×78334630² = 12272628514473800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78334637) 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, 355957 + ... + 356176.

It is an arithmetic number, because the mean of its divisors is an integer number (9613809).

Almost surely, 2^78334630 is an apocalyptic number.

78334630 is a deficient number, since it is larger than the sum of its proper divisors (75486314).

78334630 is a wasteful number, since it uses less digits than its factorization.

78334630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712151.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 78334630 is about 8850.6852842026. The cubic root of 78334630 is about 427.8760049289.

The spelling of 78334630 in words is "seventy-eight million, three hundred thirty-four thousand, six hundred thirty".