78054351 has 4 divisors (see below), whose sum is σ = 104072472. Its totient is φ = 52036232.

The previous prime is 78054329. The next prime is 78054359. The reversal of 78054351 is 15345087.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78054351 - 2⁹ = 78053839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78054359) 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, 13009056 + ... + 13009061.

It is an arithmetic number, because the mean of its divisors is an integer number (26018118).

Almost surely, 2^78054351 is an apocalyptic number.

78054351 is a deficient number, since it is larger than the sum of its proper divisors (26018121).

78054351 is a wasteful number, since it uses less digits than its factorization.

78054351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26018120.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 78054351 is about 8834.8373499460. The cubic root of 78054351 is about 427.3650858427.

The spelling of 78054351 in words is "seventy-eight million, fifty-four thousand, three hundred fifty-one".