78232459 has 8 divisors (see below), whose sum is σ = 81120960. Its totient is φ = 75356736.

The previous prime is 78232457. The next prime is 78232493. The reversal of 78232459 is 95423287.

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

It is a cyclic number.

It is not a de Polignac number, because 78232459 - 2¹ = 78232457 is a prime.

It is a super-2 number, since 2×78232459² = 12240635282373362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78232457) 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, 10302 + ... + 16204.

It is an arithmetic number, because the mean of its divisors is an integer number (10140120).

Almost surely, 2^78232459 is an apocalyptic number.

78232459 is a deficient number, since it is larger than the sum of its proper divisors (2888501).

78232459 is a wasteful number, since it uses less digits than its factorization.

78232459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6389.

The product of its digits is 120960, while the sum is 40.

The square root of 78232459 is about 8844.9114749668. The cubic root of 78232459 is about 427.6898993312.

The spelling of 78232459 in words is "seventy-eight million, two hundred thirty-two thousand, four hundred fifty-nine".