78513097 has 8 divisors (see below), whose sum is σ = 84623616. Its totient is φ = 72412752.

The previous prime is 78513067. The next prime is 78513107. The reversal of 78513097 is 79031587.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78513097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78513067) 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, 23208 + ... + 26374.

It is an arithmetic number, because the mean of its divisors is an integer number (10577952).

Almost surely, 2^78513097 is an apocalyptic number.

It is an amenable number.

78513097 is a deficient number, since it is larger than the sum of its proper divisors (6110519).

78513097 is a wasteful number, since it uses less digits than its factorization.

78513097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 78513097 is about 8860.7616489780. The cubic root of 78513097 is about 428.2006967011.

The spelling of 78513097 in words is "seventy-eight million, five hundred thirteen thousand, ninety-seven".