78573011 has 4 divisors (see below), whose sum is σ = 85716024. Its totient is φ = 71430000.

The previous prime is 78572983. The next prime is 78573013. The reversal of 78573011 is 11037587.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11037587 = 11 ⋅1003417.

It is a cyclic number.

It is not a de Polignac number, because 78573011 - 2²⁶ = 11464147 is a prime.

It is a super-2 number, since 2×78573011² = 12347436115212242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78573013) 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 3 ways as a sum of consecutive naturals, for example, 3571490 + ... + 3571511.

It is an arithmetic number, because the mean of its divisors is an integer number (21429006).

Almost surely, 2^78573011 is an apocalyptic number.

78573011 is a deficient number, since it is larger than the sum of its proper divisors (7143013).

78573011 is a wasteful number, since it uses less digits than its factorization.

78573011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143012.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 78573011 is about 8864.1418648395. The cubic root of 78573011 is about 428.3095901825.

The spelling of 78573011 in words is "seventy-eight million, five hundred seventy-three thousand, eleven".