79284137 has 4 divisors (see below), whose sum is σ = 80175060. Its totient is φ = 78393216.

The previous prime is 79284113. The next prime is 79284157. The reversal of 79284137 is 73148297.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11978521 + 67305616 = 3461^2 + 8204^2 .

It is a cyclic number.

It is not a de Polignac number, because 79284137 - 2⁸ = 79283881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79284094 and 79284103.

It is not an unprimeable number, because it can be changed into a prime (79284157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445328 + ... + 445505.

It is an arithmetic number, because the mean of its divisors is an integer number (20043765).

Almost surely, 2^79284137 is an apocalyptic number.

It is an amenable number.

79284137 is a deficient number, since it is larger than the sum of its proper divisors (890923).

79284137 is an equidigital number, since it uses as much as digits as its factorization.

79284137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890922.

The product of its digits is 84672, while the sum is 41.

The square root of 79284137 is about 8904.1640258926. The cubic root of 79284137 is about 429.5978518879.

The spelling of 79284137 in words is "seventy-nine million, two hundred eighty-four thousand, one hundred thirty-seven".