78364311 has 8 divisors (see below), whose sum is σ = 107856384. Its totient is φ = 50557560.

The previous prime is 78364309. The next prime is 78364327. The reversal of 78364311 is 11346387.

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

It is not a de Polignac number, because 78364311 - 2¹ = 78364309 is a prime.

It is a super-2 number, since 2×78364311² = 12281930477009442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78364301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421221 + ... + 421406.

It is an arithmetic number, because the mean of its divisors is an integer number (13482048).

Almost surely, 2^78364311 is an apocalyptic number.

78364311 is a deficient number, since it is larger than the sum of its proper divisors (29492073).

78364311 is a wasteful number, since it uses less digits than its factorization.

78364311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842661.

The product of its digits is 12096, while the sum is 33.

The square root of 78364311 is about 8852.3618882194. The cubic root of 78364311 is about 427.9300388602.

The spelling of 78364311 in words is "seventy-eight million, three hundred sixty-four thousand, three hundred eleven".