78427482 has 16 divisors (see below), whose sum is σ = 179262912. Its totient is φ = 22407840.

The previous prime is 78427463. The next prime is 78427483. The reversal of 78427482 is 28472487.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1867321 = 78427482 / (7 + 8 + 4 + 2 + 7 + 4 + 8 + 2).

It is not an unprimeable number, because it can be changed into a prime (78427483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933619 + ... + 933702.

It is an arithmetic number, because the mean of its divisors is an integer number (11203932).

Almost surely, 2^78427482 is an apocalyptic number.

78427482 is an abundant number, since it is smaller than the sum of its proper divisors (100835430).

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

78427482 is a wasteful number, since it uses less digits than its factorization.

78427482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867333.

The product of its digits is 200704, while the sum is 42.

The square root of 78427482 is about 8855.9292002590. The cubic root of 78427482 is about 428.0449955606.

The spelling of 78427482 in words is "seventy-eight million, four hundred twenty-seven thousand, four hundred eighty-two".