78899041 has 16 divisors (see below), whose sum is σ = 87494400. Its totient is φ = 70691328.

The previous prime is 78899021. The next prime is 78899063. The reversal of 78899041 is 14099887.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 78899041 - 2⁷ = 78898913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78898982 and 78899000.

It is not an unprimeable number, because it can be changed into a prime (78899011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84465 + ... + 85393.

It is an arithmetic number, because the mean of its divisors is an integer number (5468400).

Almost surely, 2^78899041 is an apocalyptic number.

It is an amenable number.

78899041 is a deficient number, since it is larger than the sum of its proper divisors (8595359).

78899041 is a wasteful number, since it uses less digits than its factorization.

78899041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 78899041 is about 8882.5132141754. The cubic root of 78899041 is about 428.9011804127.

The spelling of 78899041 in words is "seventy-eight million, eight hundred ninety-nine thousand, forty-one".