78963522 has 32 divisors (see below), whose sum is σ = 172882944. Its totient is φ = 23845200.

The previous prime is 78963503. The next prime is 78963527. The reversal of 78963522 is 22536987.

It is not an unprimeable number, because it can be changed into a prime (78963527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18603 + ... + 22449.

It is an arithmetic number, because the mean of its divisors is an integer number (5402592).

Almost surely, 2^78963522 is an apocalyptic number.

78963522 is an abundant number, since it is smaller than the sum of its proper divisors (93919422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78963522 is a wasteful number, since it uses less digits than its factorization.

78963522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4174.

The product of its digits is 181440, while the sum is 42.

The square root of 78963522 is about 8886.1421325567. The cubic root of 78963522 is about 429.0179898021.

The spelling of 78963522 in words is "seventy-eight million, nine hundred sixty-three thousand, five hundred twenty-two".