78114331 has 4 divisors (see below), whose sum is σ = 79103200. Its totient is φ = 77125464.

The previous prime is 78114299. The next prime is 78114341. The reversal of 78114331 is 13341187.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78114331 - 2⁵ = 78114299 is a prime.

It is a super-2 number, since 2×78114331² = 12203697415155122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78114331.

It is not an unprimeable number, because it can be changed into a prime (78114341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494316 + ... + 494473.

It is an arithmetic number, because the mean of its divisors is an integer number (19775800).

Almost surely, 2^78114331 is an apocalyptic number.

78114331 is a deficient number, since it is larger than the sum of its proper divisors (988869).

78114331 is an equidigital number, since it uses as much as digits as its factorization.

78114331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988868.

The product of its digits is 2016, while the sum is 28.

The square root of 78114331 is about 8838.2312144456. The cubic root of 78114331 is about 427.4745258010.

The spelling of 78114331 in words is "seventy-eight million, one hundred fourteen thousand, three hundred thirty-one".