79751066 has 4 divisors (see below), whose sum is σ = 119626602. Its totient is φ = 39875532.

The previous prime is 79751011. The next prime is 79751069. The reversal of 79751066 is 66015797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66015797 = 79 ⋅835643.

It can be written as a sum of positive squares in only one way, i.e., 79727041 + 24025 = 8929^2 + 155^2 .

It is not an unprimeable number, because it can be changed into a prime (79751069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19937765 + ... + 19937768.

Almost surely, 2^79751066 is an apocalyptic number.

79751066 is a deficient number, since it is larger than the sum of its proper divisors (39875536).

79751066 is a wasteful number, since it uses less digits than its factorization.

79751066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39875535.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 79751066 is about 8930.3452340881. The cubic root of 79751066 is about 430.4395469355.

The spelling of 79751066 in words is "seventy-nine million, seven hundred fifty-one thousand, sixty-six".