78199041 has 8 divisors (see below), whose sum is σ = 109753120. Its totient is φ = 49388832.

The previous prime is 78199027. The next prime is 78199067. The reversal of 78199041 is 14099187.

It is a happy number.

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

It is not a de Polignac number, because 78199041 - 2¹⁵ = 78166273 is a prime.

It is a super-2 number, since 2×78199041² = 12230180026639362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78199001) 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, 685900 + ... + 686013.

It is an arithmetic number, because the mean of its divisors is an integer number (13719140).

Almost surely, 2^78199041 is an apocalyptic number.

It is an amenable number.

78199041 is a deficient number, since it is larger than the sum of its proper divisors (31554079).

78199041 is a wasteful number, since it uses less digits than its factorization.

78199041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371935.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 78199041 is about 8843.0221643961. The cubic root of 78199041 is about 427.6289929129.

The spelling of 78199041 in words is "seventy-eight million, one hundred ninety-nine thousand, forty-one".