78460845 has 24 divisors (see below), whose sum is σ = 129741408. Its totient is φ = 40488480.

The previous prime is 78460807. The next prime is 78460847. The reversal of 78460845 is 54806487.

It is not a de Polignac number, because 78460845 - 2⁷ = 78460717 is a prime.

It is a super-2 number, since 2×78460845² = 12312208396228050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78460797 and 78460806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78460847) 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, 11694 + ... + 17136.

It is an arithmetic number, because the mean of its divisors is an integer number (5405892).

Almost surely, 2^78460845 is an apocalyptic number.

It is an amenable number.

78460845 is a deficient number, since it is larger than the sum of its proper divisors (51280563).

78460845 is a wasteful number, since it uses less digits than its factorization.

78460845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513 (or 5482 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 78460845 is about 8857.8126532457. The cubic root of 78460845 is about 428.1056836437.

The spelling of 78460845 in words is "seventy-eight million, four hundred sixty thousand, eight hundred forty-five".