78414011 has 4 divisors (see below), whose sum is σ = 84445872. Its totient is φ = 72382152.

The previous prime is 78413981. The next prime is 78414023. The reversal of 78414011 is 11041487.

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 78414011 - 2¹⁸ = 78151867 is a prime.

It is a super-2 number, since 2×78414011² = 12297514242216242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78414031) 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, 3015911 + ... + 3015936.

It is an arithmetic number, because the mean of its divisors is an integer number (21111468).

Almost surely, 2^78414011 is an apocalyptic number.

78414011 is a deficient number, since it is larger than the sum of its proper divisors (6031861).

78414011 is a wasteful number, since it uses less digits than its factorization.

78414011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6031860.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 78414011 is about 8855.1686037026. The cubic root of 78414011 is about 428.0204866165.

Adding to 78414011 its reverse (11041487), we get a palindrome (89455498).

The spelling of 78414011 in words is "seventy-eight million, four hundred fourteen thousand, eleven".