78020227 has 8 divisors (see below), whose sum is σ = 79932096. Its totient is φ = 76130472.

The previous prime is 78020221. The next prime is 78020233. The reversal of 78020227 is 72202087.

It is an interprime number because it is at equal distance from previous prime (78020221) and next prime (78020233).

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 78020227 - 2²³ = 69631619 is a prime.

It is a super-2 number, since 2×78020227² = 12174311642263058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78020195 and 78020204.

It is not an unprimeable number, because it can be changed into a prime (78020221) 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, 1728 + ... + 12610.

It is an arithmetic number, because the mean of its divisors is an integer number (9991512).

Almost surely, 2^78020227 is an apocalyptic number.

78020227 is a deficient number, since it is larger than the sum of its proper divisors (1911869).

78020227 is a wasteful number, since it uses less digits than its factorization.

78020227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11057.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 78020227 is about 8832.9059204771. The cubic root of 78020227 is about 427.3027979124.

The spelling of 78020227 in words is "seventy-eight million, twenty thousand, two hundred twenty-seven".