47722537 has 2 divisors, whose sum is σ = 47722538. Its totient is φ = 47722536.

The previous prime is 47722523. The next prime is 47722541. The reversal of 47722537 is 73522774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32387481 + 15335056 = 5691^2 + 3916^2 .

It is a cyclic number.

It is not a de Polignac number, because 47722537 - 2¹⁵ = 47689769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47722496 and 47722505.

It is not a weakly prime, because it can be changed into another prime (47722517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23861268 + 23861269.

It is an arithmetic number, because the mean of its divisors is an integer number (23861269).

Almost surely, 2^47722537 is an apocalyptic number.

It is an amenable number.

47722537 is a deficient number, since it is larger than the sum of its proper divisors (1).

47722537 is an equidigital number, since it uses as much as digits as its factorization.

47722537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82320, while the sum is 37.

The square root of 47722537 is about 6908.1500417985. The cubic root of 47722537 is about 362.7225097645.

The spelling of 47722537 in words is "forty-seven million, seven hundred twenty-two thousand, five hundred thirty-seven".