47637901 has 2 divisors, whose sum is σ = 47637902. Its totient is φ = 47637900.

The previous prime is 47637841. The next prime is 47637911. The reversal of 47637901 is 10973674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42120100 + 5517801 = 6490^2 + 2349^2 .

It is a cyclic number.

It is not a de Polignac number, because 47637901 - 2⁷ = 47637773 is a prime.

It is a super-2 number, since 2×47637901² = 4538739223371602, which contains 22 as substring.

It is a Chen prime.

It is equal to p_2867725 and since 47637901 and 2867725 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47637911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23818950 + 23818951.

It is an arithmetic number, because the mean of its divisors is an integer number (23818951).

Almost surely, 2^47637901 is an apocalyptic number.

It is an amenable number.

47637901 is a deficient number, since it is larger than the sum of its proper divisors (1).

47637901 is an equidigital number, since it uses as much as digits as its factorization.

47637901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 47637901 is about 6902.0215154692. The cubic root of 47637901 is about 362.5079532143.

The spelling of 47637901 in words is "forty-seven million, six hundred thirty-seven thousand, nine hundred one".