78465210 has 32 divisors (see below), whose sum is σ = 188835840. Its totient is φ = 20866368.

The previous prime is 78465199. The next prime is 78465223. The reversal of 78465210 is 1256487.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8076 + ... + 14904.

It is an arithmetic number, because the mean of its divisors is an integer number (5901120).

Almost surely, 2^78465210 is an apocalyptic number.

78465210 is an abundant number, since it is smaller than the sum of its proper divisors (110370630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78465210 is a wasteful number, since it uses less digits than its factorization.

78465210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7222.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 78465210 is about 8858.0590424765. The cubic root of 78465210 is about 428.1136224088.

The spelling of 78465210 in words is "seventy-eight million, four hundred sixty-five thousand, two hundred ten".