47709401 has 2 divisors, whose sum is σ = 47709402. Its totient is φ = 47709400.

The previous prime is 47709349. The next prime is 47709413. The reversal of 47709401 is 10490774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45225625 + 2483776 = 6725^2 + 1576^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47709401 is a prime.

It is equal to p_2871734 and since 47709401 and 2871734 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (47709461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23854700 + 23854701.

It is an arithmetic number, because the mean of its divisors is an integer number (23854701).

Almost surely, 2^47709401 is an apocalyptic number.

It is an amenable number.

47709401 is a deficient number, since it is larger than the sum of its proper divisors (1).

47709401 is an equidigital number, since it uses as much as digits as its factorization.

47709401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 47709401 is about 6907.1992153115. The cubic root of 47709401 is about 362.6892259784.

The spelling of 47709401 in words is "forty-seven million, seven hundred nine thousand, four hundred one".