78501411 has 12 divisors (see below), whose sum is σ = 114220392. Its totient is φ = 51951456.

The previous prime is 78501403. The next prime is 78501443. The reversal of 78501411 is 11410587.

It is not a de Polignac number, because 78501411 - 2³ = 78501403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78501491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30601 + ... + 33066.

It is an arithmetic number, because the mean of its divisors is an integer number (9518366).

Almost surely, 2^78501411 is an apocalyptic number.

78501411 is a deficient number, since it is larger than the sum of its proper divisors (35718981).

78501411 is a wasteful number, since it uses less digits than its factorization.

78501411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63810 (or 63807 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 78501411 is about 8860.1022003135. The cubic root of 78501411 is about 428.1794509819.

Adding to 78501411 its reverse (11410587), we get a palindrome (89911998).

It can be divided in two parts, 7850 and 1411, that added together give a cube (9261 = 21³).

The spelling of 78501411 in words is "seventy-eight million, five hundred one thousand, four hundred eleven".