78632423 has 10 divisors (see below), whose sum is σ = 84004824. Its totient is φ = 73464468.

The previous prime is 78632419. The next prime is 78632441. The reversal of 78632423 is 32423687.

It is not a de Polignac number, because 78632423 - 2² = 78632419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78632453) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1828640 + ... + 1828682.

Almost surely, 2^78632423 is an apocalyptic number.

78632423 is a deficient number, since it is larger than the sum of its proper divisors (5372401).

78632423 is an frugal number, since it uses more digits than its factorization.

78632423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 66 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 78632423 is about 8867.4924866052. The cubic root of 78632423 is about 428.4175166320.

The spelling of 78632423 in words is "seventy-eight million, six hundred thirty-two thousand, four hundred twenty-three".