78453801 has 24 divisors (see below), whose sum is σ = 119113280. Its totient is φ = 49696416.

The previous prime is 78453799. The next prime is 78453821. The reversal of 78453801 is 10835487.

It is not a de Polignac number, because 78453801 - 2¹ = 78453799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78453821) 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, 11580 + ... + 17058.

Almost surely, 2^78453801 is an apocalyptic number.

It is an amenable number.

78453801 is a deficient number, since it is larger than the sum of its proper divisors (40659479).

78453801 is a wasteful number, since it uses less digits than its factorization.

78453801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5565 (or 5562 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 78453801 is about 8857.4150292283. The cubic root of 78453801 is about 428.0928718747.

The spelling of 78453801 in words is "seventy-eight million, four hundred fifty-three thousand, eight hundred one".