79471537 has 2 divisors, whose sum is σ = 79471538. Its totient is φ = 79471536.

The previous prime is 79471531. The next prime is 79471591. The reversal of 79471537 is 73517497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73977201 + 5494336 = 8601^2 + 2344^2 .

It is a cyclic number.

It is not a de Polignac number, because 79471537 - 2⁷ = 79471409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79471493 and 79471502.

It is not a weakly prime, because it can be changed into another prime (79471531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39735768 + 39735769.

It is an arithmetic number, because the mean of its divisors is an integer number (39735769).

Almost surely, 2^79471537 is an apocalyptic number.

It is an amenable number.

79471537 is a deficient number, since it is larger than the sum of its proper divisors (1).

79471537 is an equidigital number, since it uses as much as digits as its factorization.

79471537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185220, while the sum is 43.

The square root of 79471537 is about 8914.6809813924. The cubic root of 79471537 is about 429.9360586373.

It can be divided in two parts, 79471 and 537, that added together give a palindrome (80008).

The spelling of 79471537 in words is "seventy-nine million, four hundred seventy-one thousand, five hundred thirty-seven".