78303854 has 8 divisors (see below), whose sum is σ = 117776928. Its totient is φ = 39044880.

The previous prime is 78303839. The next prime is 78303859. The reversal of 78303854 is 45830387.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78303854² = 12262987102506632, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78303859) 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, 52607 + ... + 54074.

It is an arithmetic number, because the mean of its divisors is an integer number (14722116).

Almost surely, 2^78303854 is an apocalyptic number.

78303854 is a deficient number, since it is larger than the sum of its proper divisors (39473074).

78303854 is a wasteful number, since it uses less digits than its factorization.

78303854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107050.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 78303854 is about 8848.9464909672. The cubic root of 78303854 is about 427.8199631467.

The spelling of 78303854 in words is "seventy-eight million, three hundred three thousand, eight hundred fifty-four".