78480237 has 24 divisors (see below), whose sum is σ = 115869600. Its totient is φ = 47212000.

The previous prime is 78480229. The next prime is 78480247. The reversal of 78480237 is 73208487.

It is not a de Polignac number, because 78480237 - 2³ = 78480229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78480195 and 78480204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78480217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53362 + ... + 54812.

It is an arithmetic number, because the mean of its divisors is an integer number (4827900).

Almost surely, 2^78480237 is an apocalyptic number.

It is an amenable number.

78480237 is a deficient number, since it is larger than the sum of its proper divisors (37389363).

78480237 is a wasteful number, since it uses less digits than its factorization.

78480237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 78480237 is about 8858.9072125178. The cubic root of 78480237 is about 428.1409502431.

The spelling of 78480237 in words is "seventy-eight million, four hundred eighty thousand, two hundred thirty-seven".