78487483 has 4 divisors (see below), whose sum is σ = 79562728. Its totient is φ = 77412240.

The previous prime is 78487481. The next prime is 78487511. The reversal of 78487483 is 38478487.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38478487 = 173 ⋅222419.

It is a cyclic number.

It is not a de Polignac number, because 78487483 - 2¹ = 78487481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78487481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537513 + ... + 537658.

It is an arithmetic number, because the mean of its divisors is an integer number (19890682).

Almost surely, 2^78487483 is an apocalyptic number.

78487483 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

78487483 is a deficient number, since it is larger than the sum of its proper divisors (1075245).

78487483 is a wasteful number, since it uses less digits than its factorization.

78487483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075244.

The product of its digits is 1204224, while the sum is 49.

The square root of 78487483 is about 8859.3161699987. The cubic root of 78487483 is about 428.1541264429.

The spelling of 78487483 in words is "seventy-eight million, four hundred eighty-seven thousand, four hundred eighty-three".