78463231 has 24 divisors (see below), whose sum is σ = 99743616. Its totient is φ = 59962320.

The previous prime is 78463213. The next prime is 78463243. The reversal of 78463231 is 13236487.

It is a happy number.

It is not a de Polignac number, because 78463231 - 2¹¹ = 78461183 is a prime.

It is a super-2 number, since 2×78463231² = 12312957237918722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78463271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 345540 + ... + 345766.

It is an arithmetic number, because the mean of its divisors is an integer number (4155984).

Almost surely, 2^78463231 is an apocalyptic number.

78463231 is a deficient number, since it is larger than the sum of its proper divisors (21280385).

78463231 is a wasteful number, since it uses less digits than its factorization.

78463231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 312 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 78463231 is about 8857.9473355851. The cubic root of 78463231 is about 428.1100231747.

The spelling of 78463231 in words is "seventy-eight million, four hundred sixty-three thousand, two hundred thirty-one".