78054902 has 8 divisors (see below), whose sum is σ = 119291616. Its totient is φ = 38291032.

The previous prime is 78054901. The next prime is 78054917. The reversal of 78054902 is 20945087.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78054901) 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, 368078 + ... + 368289.

It is an arithmetic number, because the mean of its divisors is an integer number (14911452).

Almost surely, 2^78054902 is an apocalyptic number.

78054902 is a deficient number, since it is larger than the sum of its proper divisors (41236714).

78054902 is a wasteful number, since it uses less digits than its factorization.

78054902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736422.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 78054902 is about 8834.8685332607. The cubic root of 78054902 is about 427.3660914565.

Adding to 78054902 its reverse (20945087), we get a palindrome (98999989).

The spelling of 78054902 in words is "seventy-eight million, fifty-four thousand, nine hundred two".