79487237 has 2 divisors, whose sum is σ = 79487238. Its totient is φ = 79487236.

The previous prime is 79487183. The next prime is 79487297. The reversal of 79487237 is 73278497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40972801 + 38514436 = 6401^2 + 6206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79487237 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 79487191 and 79487200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79487297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39743618 + 39743619.

It is an arithmetic number, because the mean of its divisors is an integer number (39743619).

Almost surely, 2^79487237 is an apocalyptic number.

It is an amenable number.

79487237 is a deficient number, since it is larger than the sum of its proper divisors (1).

79487237 is an equidigital number, since it uses as much as digits as its factorization.

79487237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 47.

The square root of 79487237 is about 8915.5615078356. The cubic root of 79487237 is about 429.9643687800.

The spelling of 79487237 in words is "seventy-nine million, four hundred eighty-seven thousand, two hundred thirty-seven".