79861941 has 6 divisors (see below), whose sum is σ = 115356150. Its totient is φ = 53241288.

The previous prime is 79861939. The next prime is 79861949. The reversal of 79861941 is 14916897.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 75325041 + 4536900 = 8679^2 + 2130^2 .

It is not a de Polignac number, because 79861941 - 2¹ = 79861939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79861949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4436766 + ... + 4436783.

It is an arithmetic number, because the mean of its divisors is an integer number (19226025).

Almost surely, 2^79861941 is an apocalyptic number.

It is an amenable number.

79861941 is a deficient number, since it is larger than the sum of its proper divisors (35494209).

79861941 is a wasteful number, since it uses less digits than its factorization.

79861941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8873555 (or 8873552 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 79861941 is about 8936.5508447051. The cubic root of 79861941 is about 430.6389293700.

The spelling of 79861941 in words is "seventy-nine million, eight hundred sixty-one thousand, nine hundred forty-one".