78495963 has 32 divisors (see below), whose sum is σ = 129411072. Its totient is φ = 41212800.

The previous prime is 78495961. The next prime is 78495971. The reversal of 78495963 is 36959487.

It is not a de Polignac number, because 78495963 - 2¹ = 78495961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78495961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73453 + ... + 74513.

It is an arithmetic number, because the mean of its divisors is an integer number (4044096).

Almost surely, 2^78495963 is an apocalyptic number.

78495963 is a deficient number, since it is larger than the sum of its proper divisors (50915109).

78495963 is a wasteful number, since it uses less digits than its factorization.

78495963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355.

The product of its digits is 1632960, while the sum is 51.

The square root of 78495963 is about 8859.7947493156. The cubic root of 78495963 is about 428.1695455310.

The spelling of 78495963 in words is "seventy-eight million, four hundred ninety-five thousand, nine hundred sixty-three".