79868546 has 4 divisors (see below), whose sum is σ = 119802822. Its totient is φ = 39934272.

The previous prime is 79868531. The next prime is 79868549. The reversal of 79868546 is 64586897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64586897 = 967 ⋅66791.

It can be written as a sum of positive squares in only one way, i.e., 76300225 + 3568321 = 8735^2 + 1889^2 .

It is not an unprimeable number, because it can be changed into a prime (79868549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19967135 + ... + 19967138.

Almost surely, 2^79868546 is an apocalyptic number.

79868546 is a deficient number, since it is larger than the sum of its proper divisors (39934276).

79868546 is a wasteful number, since it uses less digits than its factorization.

79868546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39934275.

The product of its digits is 2903040, while the sum is 53.

The square root of 79868546 is about 8936.9203867999. The cubic root of 79868546 is about 430.6508010729.

The spelling of 79868546 in words is "seventy-nine million, eight hundred sixty-eight thousand, five hundred forty-six".