78548897 has 8 divisors (see below), whose sum is σ = 89924352. Its totient is φ = 67212000.

The previous prime is 78548893. The next prime is 78548903. The reversal of 78548897 is 79884587.

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

It is a cyclic number.

It is not a de Polignac number, because 78548897 - 2² = 78548893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78548893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5129 + ... + 13542.

It is an arithmetic number, because the mean of its divisors is an integer number (11240544).

Almost surely, 2^78548897 is an apocalyptic number.

It is an amenable number.

78548897 is a deficient number, since it is larger than the sum of its proper divisors (11375455).

78548897 is a wasteful number, since it uses less digits than its factorization.

78548897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19279.

The product of its digits is 4515840, while the sum is 56.

The square root of 78548897 is about 8862.7815611127. The cubic root of 78548897 is about 428.2657697320.

The spelling of 78548897 in words is "seventy-eight million, five hundred forty-eight thousand, eight hundred ninety-seven".