78730955 has 8 divisors (see below), whose sum is σ = 98584992. Its totient is φ = 60246208.

The previous prime is 78730937. The next prime is 78730991. The reversal of 78730955 is 55903787.

It is a happy number.

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 78730955 - 2²⁰ = 77682379 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342194 + ... + 342423.

It is an arithmetic number, because the mean of its divisors is an integer number (12323124).

Almost surely, 2^78730955 is an apocalyptic number.

78730955 is a deficient number, since it is larger than the sum of its proper divisors (19854037).

78730955 is a wasteful number, since it uses less digits than its factorization.

78730955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684645.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 78730955 is about 8873.0465455784. The cubic root of 78730955 is about 428.5963877792.

The spelling of 78730955 in words is "seventy-eight million, seven hundred thirty thousand, nine hundred fifty-five".