78832331 has 2 divisors, whose sum is σ = 78832332. Its totient is φ = 78832330.

The previous prime is 78832309. The next prime is 78832337. The reversal of 78832331 is 13323887.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78832331 is a prime.

It is a super-2 number, since 2×78832331² = 12429072821787122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78832291 and 78832300.

It is not a weakly prime, because it can be changed into another prime (78832337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39416165 + 39416166.

It is an arithmetic number, because the mean of its divisors is an integer number (39416166).

Almost surely, 2^78832331 is an apocalyptic number.

78832331 is a deficient number, since it is larger than the sum of its proper divisors (1).

78832331 is an equidigital number, since it uses as much as digits as its factorization.

78832331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 78832331 is about 8878.7572891706. The cubic root of 78832331 is about 428.7802661190.

The spelling of 78832331 in words is "seventy-eight million, eight hundred thirty-two thousand, three hundred thirty-one".